Universe Today Podcast

Over the last weekend, astronomy Twitter started noting that the red giant Betelgeuse, the prominent shoulder of Orion was looking visibly dimmer in the sky, and I had a few people reach out to me and ask me if it was really happening and if I knew what was going on.

This is exciting, of course, because Betelgeuse is living on borrowed time, and it could explode as a supernova any day now. Or, it might not detonate for another 100,000 years. We just don’t know.

What’s Betelgeuse up to? Is this a sign that it’s about to explode? And what would it mean if it did?

Our Book is out!

https://www.amazon.com/Universe-Today-Ultimate-Viewing-Cosmos/dp/1624145442/

Audio Podcast version:

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Weekly email newsletter:

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Astronomy Cast:

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Team: Fraser Cain - @fcain / frasercain@gmail.com

Karla Thompson - @karlaii / https://www.youtube.com/channel/UCEItkORQYd4Wf0TpgYI_1fw

Chad Weber - weber.chad@gmail.com

References:

https://twitter.com/starstrickenSF/status/1209207523179237376

https://medium.com/starts-with-a-bang/what-will-happen-when-betelgeuse-explodes-df5b04164b2

https://www.eso.org/public/usa/images/potw1726b/

https://hubblesite.org/image/4027/gallery

https://www.eso.org/public/images/eso0708a/

http://www.astronomerstelegram.org/?read=13341

https://solarscience.msfc.nasa.gov/feature1.shtml

https://twitter.com/starstrickenSF/status/1209242710281986048

https://www.astro.princeton.edu/~gk/A403/pulse.pdf

https://arxiv.org/pdf/1712.01852.pdf

https://aasnova.org/2018/01/03/astrophysics-of-red-supergiants/

https://neutrinos.fnal.gov/sources/supernova-neutrinos/

https://snews.bnl.gov/

https://researchblog.duke.edu/2014/01/22/supernova-explosion-in-m82-exciting-but-no-neutrinos/

https://aasnova.org/2018/04/20/capturing-neutrinos-from-a-stars-final-hours/

https://www.phys.hawaii.edu/~jgl/nuastron.html

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This week I'm joined by Andrew Rader, a game designer and mission manager at SpaceX. Andrew's new book is called Beyond the Known and it's all about the history and future of space exploration.

Learn more about Andrew here:

https://andrew-rader.com/

And learn about his book here:

https://www.simonandschuster.com/books/Beyond-the-Known/Andrew-Rader/9781982123536

Our Book is out!

https://www.amazon.com/Universe-Today-Ultimate-Viewing-Cosmos/dp/1624145442/

Audio Podcast version:

ITunes: https://itunes.apple.com/us/podcast/universe-today-guide-to-space-audio/id794058155?mt=2

RSS: https://www.universetoday.com/audio

What Fraser's Watching Playlist:

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Team: Fraser Cain - @fcain / frasercain@gmail.com

Karla Thompson - @karlaii / https://www.youtube.com/channel/UCEItkORQYd4Wf0TpgYI_1fw

Chad Weber - weber.chad@gmail.com

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As I’m recording this video near the end of 2019, the total number of confirmed exoplanets stands at 4,104. We’ve come a long way since the discovery of the first exoplanet orbiting a sunlike star back in 1995 with 51 Pegasi b.

And the reality is that the race to find new exoplanets is only accelerating. New ground and space-based telescopes are turning up planetary candidates at an increasing rate. New techniques will find planets in entirely new ways. The bottom line is that over the next few decades, this mere 4000ish will multiply by orders of magnitude.

So let’s run the clock forward and try to calculate what the future holds for exoplanets. How many worlds will we know about 3 decades from now, in the year 2050?

Our Book is out!

https://www.amazon.com/Universe-Today-Ultimate-Viewing-Cosmos/dp/1624145442/

Audio Podcast version:

ITunes: https://itunes.apple.com/us/podcast/universe-today-guide-to-space-audio/id794058155?mt=2

RSS: https://www.universetoday.com/audio

Weekly email newsletter:

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Astronomy Cast:

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Support us at https://www.patreon.com/universetoday

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Team: Fraser Cain - @fcain / frasercain@gmail.com

Karla Thompson - @karlaii / https://www.youtube.com/channel/UCEItkORQYd4Wf0TpgYI_1fw

Chad Weber - weber.chad@gmail.com

References:

https://arxiv.org/pdf/1911.12114.pdf

https://www.investopedia.com/terms/m/mooreslaw.asp

http://exoplanet.eu/catalog/51_peg_b/

https://sci.esa.int/web/plato/-/42276-summary

https://www.eso.org/sci/facilities/eelt/

https://www.jpl.nasa.gov/habex/

https://ui.adsabs.harvard.edu/abs/2013A%26A...556A.133S/abstract

https://sci.esa.int/web/gaia/-/58788-detecting-exoplanets-with-astrometry

https://arxiv.org/pdf/1707.01348.pdf

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How old is the Universe? In order to figure that out, all you have to do is figure out how quickly it’s expanding, and then the clock backward until everything is crunched together.

And astronomers have measured the rate that the Universe is expanding with tremendous precision at various times in its history; at the beginning, and much more recently. The problem is, these expansion rates disagree, but they’ve both been measured so accurately that their error bars don’t overlap.

In other words, there are multiple, highly accurate estimates for the age of the Universe, and they disagree.

Check out Paul's channel at:

https://www.youtube.com/channel/UCBr7XOxxQyBHEwqkhoci7vw

Our Book is out!

https://www.amazon.com/Universe-Today-Ultimate-Viewing-Cosmos/dp/1624145442/

Audio Podcast version:

ITunes: https://itunes.apple.com/us/podcast/universe-today-guide-to-space-audio/id794058155?mt=2

RSS: https://www.universetoday.com/audio

Weekly email newsletter:

https://www.universetoday.com/newsletter

Weekly Space Hangout:

https://www.youtube.com/channel/UC0-KklSGlCiJDwOPdR2EUcg/

Astronomy Cast:

https://www.youtube.com/channel/UCUHI67dh9jEO2rvK--MdCSg

Support us at https://www.patreon.com/universetoday

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Twitch: https://twitch.tv/fcain

Twitter: @universetoday

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Instagram - https://instagram.com/universetoday

Team: Fraser Cain - @fcain / frasercain@gmail.com

Karla Thompson - @karlaii / https://www.youtube.com/channel/UCEItkORQYd4Wf0TpgYI_1fw

Chad Weber - weber.chad@gmail.com

Support Universe Today Podcast

In this week's questions show, I explain why I don't think we always need to be realistic, if galaxies in the local group are bound together gravitationally, and what we should call Earth-moving equipment on Mars.

00:20 Be realistic.

04:24 Are galaxies in the local group bound?

05:56 Will gravitational waves give us advanced notice of collisions?

08:36 Will we ever be able to live outside on Mars?

10:16 Are we going to ruin Mars too?

12:42 Mars-moving equipment?

14:07 Could the Moon have an atmosphere?

15:51 Liquid water on the surface of Mars

16:49 Is there a business case for Mars?

19:17 What about nitrogen?

21:21 What will need to come from Earth?

23:06 Are there planets with less gravity than Earth?

Want to be part of the questions show? Ask a short question on any video on my channel. I gather a bunch up each week, and answer them here.

Our Book is out!

https://www.amazon.com/Universe-Today-Ultimate-Viewing-Cosmos/dp/1624145442/

Audio Podcast version:

ITunes: https://itunes.apple.com/us/podcast/universe-today-guide-to-space-audio/id794058155?mt=2

RSS: https://www.universetoday.com/audio

Weekly email newsletter:

https://www.universetoday.com/newsletter

Weekly Space Hangout:

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Astronomy Cast:

https://www.youtube.com/channel/UCUHI67dh9jEO2rvK--MdCSg

Support us at: https://www.patreon.com/universetoday

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Twitch: https://twitch.tv/fcain

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Team: Fraser Cain - @fcain / frasercain@gmail.com

Karla Thompson - @karlaii / https://www.youtube.com/channel/UCEItkORQYd4Wf0TpgYI_1fw

Chad Weber - weber.chad@gmail.com

Support Universe Today Podcast

Extending humanity to other worlds in the Solar System is at the very limits of our modern technology. And unless there are dramatic discoveries in new propulsion systems or we learn how to build everything out of carbon nanotubes, the future of space exploration is going to require living off the land.

The technique is known as In-Situ Resource Utilization or ISRU, and it means supplying as much of your mission from local resources as possible.

And many of our future exploration destinations, like Mars, have a lot to work with. Let’s look at the raw materials on Mars that missions can use to live off the land and the techniques and technologies that will need to be developed to make this possible.

Our Book is out!

https://www.amazon.com/Universe-Today-Ultimate-Viewing-Cosmos/dp/1624145442/

Audio Podcast version:

ITunes: https://itunes.apple.com/us/podcast/universe-today-guide-to-space-audio/id794058155?mt=2

RSS: https://www.universetoday.com/audio

Weekly email newsletter:

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Astronomy Cast:

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Support us at https://www.patreon.com/universetoday

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Team: Fraser Cain - @fcain / frasercain@gmail.com

Karla Thompson - @karlaii / https://www.youtube.com/channel/UCEItkORQYd4Wf0TpgYI_1fw

Chad Weber - weber.chad@gmail.com

References:

https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/20160005963.pdf

https://space.nss.org/the-promise-of-mars-by-robert-zubrin/

https://www.jpl.nasa.gov/news/news.php?feature=7038

https://pubs.geoscienceworld.org/msa/ammin/article/103/7/1011/537180/gypsum-bassanite-and-anhydrite-at-gale-crater-mars

https://www.nasa.gov/image-feature/jarosite-in-the-noctis-labyrinthus-region-of-mars

http://fti.neep.wisc.edu/neep533/SPRING2004/lecture19.pdf

https://www.nature.com/articles/ngeo1923

https://www.researchgate.net/publication/242525435_Perchlorate_on_Mars_A_chemical_hazard_and_a_resource_for_humans

https://mars.nasa.gov/news/curiosity-finds-evidence-of-mars-crust-contributing-to-atmosphere/

https://mars.nasa.gov/resources/8200/boron-sodium-and-chlorine-in-mineral-vein-diyogha/

https://www.jpl.nasa.gov/news/news.php?feature=6544

https://mars.nasa.gov/mars-exploration/missions/viking-1-2/

https://www.nasa.gov/jpl/msl/pia18387

https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/20110015862.pdf

https://phys.org/news/2019-04-methane-route-storage-renewable-energy.html

https://pdfs.semanticscholar.org/9159/213d6ad79bd800d07525bc37463588742662.pdf

https://www.icis.com/explore/resources/news/2007/11/05/9075777/ethylene-uses-and-market-data

https://www.universetoday.com/144136/using-bacteria-to-build-a-base-on-mars/

https://madeinspace.us/press-releases/made-in-space-wins-nasa-contract-to-develop-hybrid-metal-manufacturing-system-for-space-exploration/

https://www.youtube.com/watch?v=5gfS5k8juDM

https://www.nature.com/articles/s41598-017-01157-w??utm_medium=affiliate&utm_source=commission_junction&utm_campaign=3_nsn6445_deeplink_PID7596969&utm_content=deeplink

https://www.hou.usra.edu/meetings/lunarisru2019/presentations/5066_Mueller.pdf

https://www.nasa.gov/directorates/spacetech/centennial_challenges/3DPHab/latest-updates-from-nasa-on-3d-printed-habitat-competition

Support Universe Today Podcast

In this week's questions show, I explain why you could have a steam-powered rocket, how often spacecraft have crashed into asteroids and comets, and why a red supergiant star actually has a very low surface gravity.

02:42 Could you build a steam-powered rocket?

04:48 Have any probes crashed into asteroids or comets?

06:47 Surface gravity of UY Scuti

08:57 Will we ever send humans to the surface of Venus?

11:08 Lol

11:24 Does Venus have a magnetic field?

12:22 Longer guest interviews?

14:09 Save the shoutouts to the end

15:55 Could a probe float at the surface of Venus?

16:47 Where do I get my news?

20:29 Why don't meteor showers hit satellites?

21:57 Why not add a module to James Webb?

Want to be part of the questions show? Ask a short question on any video on my channel. I gather a bunch up each week, and answer them here.

Our Book is out!

https://www.amazon.com/Universe-Today-Ultimate-Viewing-Cosmos/dp/1624145442/

Audio Podcast version:

ITunes: https://itunes.apple.com/us/podcast/universe-today-guide-to-space-audio/id794058155?mt=2

RSS: https://www.universetoday.com/audio

Weekly email newsletter:

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Astronomy Cast:

https://www.youtube.com/channel/UCUHI67dh9jEO2rvK--MdCSg

Support us at: https://www.patreon.com/universetoday

More stories at: https://www.universetoday.com/

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Team: Fraser Cain - @fcain / frasercain@gmail.com

Karla Thompson - @karlaii / https://www.youtube.com/channel/UCEItkORQYd4Wf0TpgYI_1fw

Chad Weber - weber.chad@gmail.com

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The exploration of Venus has been mainly about getting down to the surface of the planet. The Soviet Union sacrificed lander after lander to discover just how extreme the conditions are down there on the ground.

But higher up, among the clouds, the climate on Venus is surprisingly Earthlike in temperature and pressure, and there have been some fascinating ideas for robotic and human explorers to fly the skies of Venus, to help understand our evil twin planet.

Let’s take a look at them.

Our Book is out!

https://www.amazon.com/Universe-Today-Ultimate-Viewing-Cosmos/dp/1624145442/

Audio Podcast version:

ITunes: https://itunes.apple.com/us/podcast/universe-today-guide-to-space-audio/id794058155?mt=2

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Weekly email newsletter:

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Astronomy Cast:

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Support us at https://www.patreon.com/universetoday

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Twitch: https://twitch.tv/fcain

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Team: Fraser Cain - @fcain / frasercain@gmail.com

Karla Thompson - @karlaii / https://www.youtube.com/channel/UCEItkORQYd4Wf0TpgYI_1fw

Chad Weber - weber.chad@gmail.com

References:

https://solarsystem.nasa.gov/planets/venus/in-depth/

https://nssdc.gsfc.nasa.gov/planetary/factsheet/venusfact.html

http://www.esa.int/Science_Exploration/Space_Science/Venus_Express/Acid_clouds_and_lightning

https://solarsystem.nasa.gov/missions/magellan/in-depth/

https://progearthplanetsci.springeropen.com/articles/10.1186/s40645-018-0181-x

https://solarsystem.nasa.gov/resources/2197/aerial-platforms-for-the-scientific-exploration-of-venus/

https://www.nasa.gov/vision/universe/solarsystem/venus-20070827.html

https://trs.jpl.nasa.gov/bitstream/handle/2014/44535/13-5079_A1b.pdf?sequence=1

https://unmanned-aerial.com/nasa-taps-black-swift-to-develop-uas-for-studying-venus

https://www.universetoday.com/144045/stingray-glider-to-explore-the-cloudtops-of-venus/

https://www.lpi.usra.edu/vexag/meetings/STIM/presentations/Polidan_VAMP%20for%20STIM%20Meeting%20Jan%202013%20-%20Final%20Approved.pdf

https://sacd.larc.nasa.gov/smab/havoc/

Support Universe Today Podcast

This week I'm joined by Jason Derleth from NASA's Innovative Advanced Concepts (or NIAC). This is a special part of NASA that funds innovative ideas for new telescopes, propulsion systems and rovers. Many of the cool, science-fiction ideas I present on this channel come from research done at NASA.

Jason is an aerospace engineer and tech analyst, and the Program Executive for NASA NIAC.

Learn more about NIAC here:

https://www.nasa.gov/directorates/spacetech/niac/index.html

Our Book is out!

https://www.amazon.com/Universe-Today-Ultimate-Viewing-Cosmos/dp/1624145442/

Audio Podcast version:

ITunes: https://itunes.apple.com/us/podcast/universe-today-guide-to-space-audio/id794058155?mt=2

RSS: https://www.universetoday.com/audio

What Fraser's Watching Playlist:

https://www.youtube.com/playlist?list=PLbJ42wpShvmkjd428BcHcCEVWOjv7cJ1G

Weekly email newsletter:

https://www.universetoday.com/newsletter

Weekly Space Hangout:

https://www.youtube.com/channel/UC0-KklSGlCiJDwOPdR2EUcg/

Astronomy Cast:

https://www.youtube.com/channel/UCUHI67dh9jEO2rvK--MdCSg

Support us at: https://www.patreon.com/universetoday

More stories at: https://www.universetoday.com/

Twitch: https://twitch.tv/fcain

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Like us on Facebook: https://www.facebook.com/universetoday

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Team: Fraser Cain - @fcain / frasercain@gmail.com

Karla Thompson - @karlaii / https://www.youtube.com/channel/UCEItkORQYd4Wf0TpgYI_1fw

Chad Weber - weber.chad@gmail.com

Support Universe Today Podcast

In this week's questions show, I explain why we can see meteor showers every year, why we're not 3D printing telescopes in space, why there aren't any plans to launch telescopes with SpaceX Starship. And a lengthy answer to one of the most common James Webb questions we get: can it be refueled? This was answered by Paul Geithner, a Deputy Project Manager for James Webb during a recent livestream.

01:00 Why do we see meteor showers every year?

02:49 Why not also use 3D printing for space telescopes?

04:40 Why don't they design telescopes for Starship?

07:20 Could there be a privately backed telescope?

09:54 Is there glass on the Moon to build telescopes?

11:46 Could ISS help build new space telescopes?

13:47 Space telescopes on the far side of the Moon?

15:06 Is Andromeda actually much closer?

16:27 Why spend money on science?

19:20 Why is the dark side of the Moon illuminated?

21:34 Can James Webb be refueled?

Watch the full livestream here:

https://www.youtube.com/watch?v=iX0iCqCTKzE

Want to be part of the questions show? Ask a short question on any video on my channel. I gather a bunch up each week, and answer them here.

Our Book is out!

https://www.amazon.com/Universe-Today-Ultimate-Viewing-Cosmos/dp/1624145442/

Audio Podcast version:

ITunes: https://itunes.apple.com/us/podcast/universe-today-guide-to-space-audio/id794058155?mt=2

RSS: https://www.universetoday.com/audio

What Fraser's Watching Playlist:

https://www.youtube.com/playlist?list=PLbJ42wpShvmkjd428BcHcCEVWOjv7cJ1G

Weekly email newsletter:

https://www.universetoday.com/newsletter

Weekly Space Hangout:

https://www.youtube.com/channel/UC0-KklSGlCiJDwOPdR2EUcg/

Astronomy Cast:

https://www.youtube.com/channel/UCUHI67dh9jEO2rvK--MdCSg

Support us at: https://www.patreon.com/universetoday

More stories at: https://www.universetoday.com/

Twitch: https://twitch.tv/fcain

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Like us on Facebook: https://www.facebook.com/universetoday

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Team: Fraser Cain - @fcain / frasercain@gmail.com

Karla Thompson - @karlaii / https://www.youtube.com/channel/UCEItkORQYd4Wf0TpgYI_1fw

Chad Weber - weber.chad@gmail.com

Support Universe Today Podcast

Support Universe Today Podcast

Today I was joined by Dr. Casey Handmer, an accomplished theoretical physicist who currently works at NASA's Jet Propulsion Lab. Casey has a fascinating blog where he considers current trends in space exploration and what the future holds. Learn more about Casey here:

https://caseyhandmer.wordpress.com/

We talked about the implications of SpaceX Starship, Starlink, why power beamed from space or asteroid mining will never turn a profit down here on Earth, and why he's not that scared about space radiation.

Our Book is out!

https://www.amazon.com/Universe-Today-Ultimate-Viewing-Cosmos/dp/1624145442/

Audio Podcast version:

ITunes: https://itunes.apple.com/us/podcast/universe-today-guide-to-space-audio/id794058155?mt=2

RSS: https://www.universetoday.com/audio

What Fraser's Watching Playlist:

https://www.youtube.com/playlist?list=PLbJ42wpShvmkjd428BcHcCEVWOjv7cJ1G

Weekly email newsletter:

https://www.universetoday.com/newsletter

Weekly Space Hangout:

https://www.youtube.com/channel/UC0-KklSGlCiJDwOPdR2EUcg/

Astronomy Cast:

https://www.youtube.com/channel/UCUHI67dh9jEO2rvK--MdCSg

Support us at: https://www.patreon.com/universetoday

More stories at: https://www.universetoday.com/

Twitch: https://twitch.tv/fcain

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Instagram - https://instagram.com/universetoday

Team: Fraser Cain - @fcain / frasercain@gmail.com

Karla Thompson - @karlaii / https://www.youtube.com/channel/UCEItkORQYd4Wf0TpgYI_1fw

Chad Weber - weber.chad@gmail.com

Support Universe Today Podcast

When it comes to telescopes, bigger is better. That’s true down here on Earth, and it’s especially true out in space. As astronomers and engineers design the next generation of giant space telescopes, they’re running up against the limits of current launch providers. There are only so many ways you can fold a huge telescope to get it to fit inside a 5-meter launch fairing.

The upcoming James Webb Space Telescope is pretty much the very limit of what you can construct on Earth and put into space in a single launch. To go bigger, space agencies will need to consider assembling their next-generation space telescopes… in space.

Our Book is out!

https://www.amazon.com/Universe-Today-Ultimate-Viewing-Cosmos/dp/1624145442/

Audio Podcast version:

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References:

https://hubblesite.org/mission-and-telescope

http://herschel.cf.ac.uk/mission/launch

https://exoplanets.nasa.gov/exep/technology/in-space-assembly/iSAT_study/

https://www.nasa.gov/mission_pages/station/structure/elements/space-station-assembly

https://blogs.nasa.gov/spacex/2019/07/29/cargo-dragon-berthed-to-station/

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In this week's questions show, I tackle all the questions about James Webb generated by the videos we did this week. Can it be refueled? How can it see the entire sky? Is the delay a blessing? And more...

00:30 How will JWST run out of propellant?

03:12 Are there spacecraft that could service JWST?

05:00 Can JWST only see half the sky?

08:21 Is the delay a blessing in disguise?

10:58 Why not construct it in Low Earth Orbit?

13:09 Could we build a copy?

14:29 Could JWST use gravitational lensing?

15:55 Will JWST image black holes?

17:52 Is the telescope an antique?

18:49 Should we look or explore?

20:52 Could it find vegetation?

22:00 Is James Webb already a failure?

Want to be part of the questions show? Ask a short question on any video on my channel. I gather a bunch up each week, and answer them here.

Our Book is out!

https://www.amazon.com/Universe-Today-Ultimate-Viewing-Cosmos/dp/1624145442/

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Today I'll be joined by Paul Geithner, the Deputy Project Manager for NASA's James Webb Space Telescope. You've had questions about this mission. Well... now's your chance to get them answered directly from the source.

Paul started working with NASA in 1991 on the Hubble Space Telescope, shifting over to James Webb. In 2011, he became the Deputy Project Manager, Technical for James Webb.

Learn more here:

https://jwst.nasa.gov/content/meetTheTeam/people/geithner.html

Our Book is out!

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On March 30, 2021, NASA’s James Webb Space Telescope will blast off from the European Space Agency’s European spaceport in Kourou, French Giana on board an Ariane 5 rocket.

It’ll fly to the Sun-Earth L2 Lagrange point, a relatively stable spot in space that keeps the glare from the Sun, Earth, and Moon all in a tiny spot in the sky. Then, it’ll unfurl its tennis court-sized sunshade, fold out its gigantic 6.5-meter mirror, and peer out into the distant cosmos.

Over the course of the next 10 years, this infrared observatory will help astronomers learn about the earliest moments of the Universe, directly observe the atmospheres of planets orbiting other stars, and peer at newly forming stars and planets.

And if you listened to the words I just said with equal parts terror and skepticism, I don’t blame you. James Webb’s path to space has been long and tortuous. And the risks that the mission still faces are very real. Hopefully, the science will be worth it. Hopefully, nothing else goes wrong from now until deployment.

So today, I want to do a deep dive into James Webb. To talk about the history of the mission, why it exists, how the development went, and where it stands today.

I’ll warn you though, the length of this video is going to go way over budget.

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Chad Weber - weber.chad@gmail.com

References:

http://www.stsci.edu/jwst/about-jwst/history

https://www.nasa.gov/mission_pages/hubble/servicing/index.html

https://www.nasa.gov/content/goddard/2017/highlights-of-hubble-s-exploration-of-the-universe

http://www.stsci.edu/files/live/sites/www/files/home/hst/documentation/_documents/NextGenerationSpaceTelescope.pdf

https://webb.nasa.gov/content/about/faqs/whoIsJamesWebb.html

http://www.stsci.edu/jwst/about-jwst/history/design-reference-mission-drm

https://archive.ph/20120805155712/http://www.stsci.edu/jwst/news/2003/nasa-announces-contract

https://www.nature.com/articles/4671028a

http://www.icc.dur.ac.uk/~tt/Lectures/Galaxies/Images/Infrared/Regions/irregions.html

https://jwst.nasa.gov/content/observatory/sunshield.html

https://jwst.nasa.gov/content/observatory/instruments/index.html

https://jwst.nasa.gov/content/observatory/instruments/nircam.html

https://jwst.nasa.gov/content/observatory/instruments/fgs.html

https://jwst.nasa.gov/content/observatory/instruments/miri.html

https://jwst.nasa.gov/content/about/comparisonWebbVsHubble.html

https://jwst.nasa.gov/content/about/faqs/faq.html

http://www.spitzer.caltech.edu/

https://jwst.nasa.gov/content/forScientists/faqScientists.html

https://www.nasa.gov/press-release/nasa-completes-webb-telescope-review

https://www.nasa.gov/feature/goddard/2019/nasa-s-james-webb-space-telescope-has-been-assembled-for-the-first-time

Support Universe Today Podcast

Today's guest is Dustin Gibson from Oceanside Photo and Telescope (OPT). Dustin will talk about his journey to becoming an astrophotographer and eventually running one of the most successful telescope retailers in the world.

Follow Dustin on Instagram:

https://www.instagram.com/gibsonpics/

Or visit Oceanside Photo and Telescope

https://optcorp.com/

Our Book is out!

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Support Universe Today Podcast

In this week's questions show, I answer what will bring geostationary satellites back to Earth, if you could use the heat on Venus to power a rover, why are we so arrogant to believe that life formed only here on Earth, and more.

01:38 How long will geostatationary satellites survive?

04:31 Could you use the heat on Venus to power a rover?

05:50 Arrogant to think Earth is unique with life

07:33 What kinds of rocks are on Mars?

09:31 Perovskite solar panels on Earth?

11:27 Could there be planets with polar orbits?

13:13 SagA* % mass of the Milky Way

14:25 How do missions tackle micrometeorites?

17:05 Why doesn't a black hole turn into a regular object?

18:22 Why do sci-fi spacecraft move unrealistically in space?

21:11 What clocks will Martians use?

23:03 Could we search for dips in light to find Planet 9?

Want to be part of the questions show? Ask a short question on any video on my channel. I gather a bunch up each week, and answer them here.

Our Book is out!

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Support Universe Today Podcast

It was another solo live QA this week and I did my best to answer as many audience questions as I could do, closing in on 60 questions during the hour. Needless to say it was a wide-ranging conversation with questions about where I think rovers should go, what do I think about time travel, and whether we should do more SETI or build more space telescopes.

The thumbnail is for a Greenland rover called Grover. Here's an article about it:

https://www.nasa.gov/topics/earth/features/grover.html

01:28 Updates

05:58 Has Canada got an exoplanet?

06:10 Thoughts on Hygiea?

07:00 Where would I send a rover?

07:79 Has NASA done sex studies in space?

08:05 How can black holes ever merge?

09:55 What does a rocket push against?

11:05 What do I think of metallic hydrogen?

12:50 What's my most memorable space event?

15:36 Have I seen any time travel videos?

16:00 Could Valles Marineris caused by a scraping asteroid

17:13 Why doesn't JWST's Ariane rocket have an abort system?

18:14 What would happen if a comet passed through the atmosphere?

18:39 Is Mercury tidally locked?

19:03 What will the do about food on Mars?

19:43 Do I believe in ancient aliens

19:56 How do we measure the expansion of the Universe?

21:18 Happy Halloween

21:39 What about Nibiru?

23:12 Do different worlds experience different time dilation?

24:50 Can you brew beer in microgravity?

25:20 Any relativistic calculators?

25:45 Could we see Earth in the past with a black hole?

27:45 Could we blow up asteroids?

29:00 Will SpaceX be violating the Outerspace Treaty?

31:29 Super spiral galaxies

32:35 Europa lander keep from getting fried

33:42 What do I read in my spare time?

35:05 Have they found the bolts in James Webb?

35:27 Are aliens too different?

37:00 Any breakthroughs in propulsion?

38:18 Did I see Halley's Comet?

38:30 Are there any bright comets coming?

39:37 How frequent were meteor impacts in the Late Heavy Bombardment?

40:15 Will the Moon landings actually happen?

41:30 Will there be version of Starship that could service satellites?

42:50 Space Telescopes versus SETI

43:55 Will CRISPR help modify humans to travel in space?

44:39 Collaboration with Joe Scott

45:00 Can we terraform Venus?

45:30 Live telescope streaming?

45:54 Upcoming astronomy events?

46:07 Why grow plants in regolith?

46:56 Why do we only see photons when they hit a thing?

48:04 Could we move a pole faster than the speed of light

48:55 Could they make an anti-asteroid version of Starship?

49:58 Where did Theia come from?

50:50 What if a star made a direct hit on a black hole?

51:37 Could we terraform Mars if we set up factories on it?

52:56 Is the Sun part of Alpha Centauri?

53:29 What does the X-37B

55:00 Does it make sense to send a new Voyager?

55:39 Could there be infinite Earths?

56:00 Most realistic space movie?

57:38 When will we live off fusion energy?

59:20 What's SpaceX's plan to get through the Van Allen Belts?

59:40 How did X-37B launch?

Our Book is out!

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Solar energy is the ideal way to power a spacecraft. There’s no weather, there’s no pesky atmosphere, just pure photons streaming from the Sun to harvest for whatever you need. Well, as long as you’re within the inner Solar System.

But solar panels are complicated and fragile made of sensitive electronics and glass - not to mention, really heavy. Any spacecraft equipped with solar panels needs to handle the gravity down here on Earth for the construction and testing, then the shaking and high Gs of launch. The solar panels need to unfold perfectly once they get to space. And the total amount of energy you can harvest is limited by the size of your rocket’s launch fairing.

Maybe there’s a new strategy. NASA is currently funding research into a new type of solar panel that can be carried into space as a liquid and then sprayed onto a surface to turn it into a power generating surface.

Our Book is out!

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References:

https://www.nasa.gov/press-release/nasa-funds-demo-of-3d-printed-spacecraft-parts-made-assembled-in-orbit

http://news.mit.edu/2019/robots-large-structures-little-pieces-1016

https://science.nasa.gov/science-news/science-at-nasa/2002/solarcells/

https://www.solarpowerworldonline.com/2016/03/kind-solar-panels-nasa-use/

https://scitechdaily.com/important-breakthrough-in-perovskite-solar-cells/

https://news.ucmerced.edu/news/2019/uc-merced-reaches-stars-solar-cells

https://www.nasa.gov/feature/glenn/2019/building-solar-panels-in-space-might-be-as-easy-as-clicking-print

https://www1.grc.nasa.gov/facilities/eppl/#vacuum-facility-6-vf6-

Support Universe Today Podcast

In this week's questions show, I tackle questions about seeding Europa with hardy Earth life, what makes galaxies spin, what are we competing with aliens for, and why is it so hard for second stages of rockets to land?

Subscribe to Back to Space

https://www.youtube.com/channel/UCHZ63YtVtdQDqLxKyTDmtmw

01:46 Why not take Earth life to Europa?

04:00 What if the aliens are aligned to Planet 9?

06:09 What makes a galaxy spin?

07:22 What are we competing with aliens for?

09:39 Are we constantly reusing atmosphere on ISS?

11:33 Should we settle ice worlds?

13:52 Why can't second stages be landed?

17:03 Does Sag A* spin the same way as the Milky Way?

20:22 Is the search for life in space a waste of time?

21:59 Could asteroid mining change their orbits?

23:51 Would SpaceX send NASA astronauts to Mars?

24:25 How much fuel does ISS need?

25:01 What kind of training do astronauts get?

25:52 What is Max Q?

Want to be part of the questions show? Ask a short question on any video on my channel. I gather a bunch up each week, and answer them here.

Our Book is out!

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Chad Weber - weber.chad@gmail.com

Support Universe Today Podcast

The race is on to find life in other places in the Solar System, from underground reservoirs on Mars to the subsurface oceans on Europa and Enceladus.

If spacecraft, rovers or even astronauts make the momentous discovery of life on another world, that’ll just open up new questions. Did it originate all on its own, completely independently from Earth, or are we somehow related? And if we are related, how long ago did our evolutionary trees branch away from each other.

Even though Mars is millions of kilometers away, it could be possible that we’re still related thanks to the concept of Panspermia; the idea that meteor impacts could transfer rocks and maybe even living creatures from world to world.

But could you go one step further? If we find life on another star system, could we discover that we’re actually related to them too? Is Galactic Panspermia possible?

Our Book is out!

https://www.amazon.com/Universe-Today-Ultimate-Viewing-Cosmos/dp/1624145442/

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Support us at https://www.patreon.com/universetoday

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Karla Thompson - @karlaii / https://www.youtube.com/channel/UCEItkORQYd4Wf0TpgYI_1fw

Chad Weber - weber.chad@gmail.com

References:

https://www.hoyle.org.uk/resources/virusesfromspacecompressed.pdf

https://www.lpi.usra.edu/lpi/meteorites/The_Meteorite.shtml

https://www.planetary.org/blogs/emily-lakdawalla/2013/03211549-lpsc-hermean-meteorite.html

https://www.dlr.de/me/en/desktopdefault.aspx/tabid-1752/2384_read-54290/

https://memory-alpha.fandom.com/wiki/Humanoid

https://phys.org/news/2018-08-timescale-evolution-life-earth.html

https://arxiv.org/ftp/arxiv/papers/1011/1011.0101.pdf

https://www.planetary.org/blogs/guest-blogs/2013/20130926-gravity-assist.html

https://arxiv.org/abs/1011.0101

https://phys.org/news/2010-11-necropanspermia-seeding-life-earth.html

https://academic.oup.com/mnras/article/198/3/723/1012846

https://arxiv.org/pdf/1910.06414.pdf

https://www.nasa.gov/feature/goddard/2019/hubble-observes-1st-confirmed-interstellar-comet/

https://academic.oup.com/mnras/article/476/3/3031/4909830

https://nssdc.gsfc.nasa.gov/planetary/hyakutake.html

https://www.youtube.com/watch?v=q2YkvWdUUNQ

Support Universe Today Podcast

If you’ve watched this channel enough, you might have the impression that I hate Venus. It’s possible, just possible I’ve even suggested that the planet is so terrible it should be pushed into the Sun.

The reality, of course, is that it’s an absolutely fascinating world - the closest twin to the Earth that we have in the Solar System. It’s nearly the same mass and has the same surface gravity.

While Earth is the beautiful life-filled world we all enjoy, Venus is a tortured hellscape, with temperatures hot enough to melt zinc. With atmospheric pressures more than 93 times what we experience here on the surface of Earth. And I always forget about the sulphuric acid rain.

The Soviets sent a series of landers to a horrible demise for a glimpse of the surface of Venus in the 70s and 80s. But nobody’s been back since.

There have been new techniques and technologies in development that might make a serious exploration of the surface of Venus possible again. Exploration that could help us understand why the planet went so horribly horribly wrong.

Our Book is out!

https://www.amazon.com/Universe-Today-Ultimate-Viewing-Cosmos/dp/1624145442/

Audio Podcast version:

ITunes: https://itunes.apple.com/us/podcast/universe-today-guide-to-space-audio/id794058155?mt=2

RSS: https://www.universetoday.com/audio

What Fraser's Watching Playlist:

https://www.youtube.com/playlist?list=PLbJ42wpShvmkjd428BcHcCEVWOjv7cJ1G

Weekly email newsletter:

https://www.universetoday.com/newsletter

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https://www.youtube.com/channel/UC0-KklSGlCiJDwOPdR2EUcg/

Astronomy Cast:

https://www.youtube.com/channel/UCUHI67dh9jEO2rvK--MdCSg

Support us at https://www.patreon.com/universetoday

More stories at https://www.universetoday.com/

Twitch: https://twitch.tv/fcain

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Team: Fraser Cain - @fcain / frasercain@gmail.com

Karla Thompson - @karlaii / https://www.youtube.com/channel/UCEItkORQYd4Wf0TpgYI_1fw

Chad Weber - weber.chad@gmail.com

References:

https://www.lpi.usra.edu/vexag/vexag_goals_2007.pdf

https://www.nasa.gov/feature/jpl/nasa-studying-shared-venus-science-objectives-with-russian-space-research-institute

https://www.nytimes.com/1984/12/16/world/soviet-spacecraft-heads-for-comet.html

https://www.planetary.org/blogs/guest-blogs/2015/0305-venus-from-33-years-ago.html

https://www.researchgate.net/publication/268472597_Analysis_of_Solar_Cell_Efficiency_for_Venus_Atmosphere_and_Surface_Missions

https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/2017EA000355

https://www.hou.usra.edu/meetings/lpsc2018/pdf/1243.pdf

http://www.russianspaceweb.com/venera_d.html

https://www.lpi.usra.edu/vexag/meetings/archive/vexag_14/presentations/27-Kremic-Long-Lived%20Venus%20Station.pdf

https://science.nasa.gov/technology/technology-stories/electronics-demonstrate-operability-in-simulated-venus-conditions

https://www.nasa.gov/feature/jpl/a-clockwork-rover-for-venus

https://www.lpi.usra.edu/vexag/meetings/archive/vexag_15/presentations/9-Saunder-AREE.pdf

https://www.youtube.com/watch?v=u9fki7dligU

https://www.nasa.gov/directorates/spacetech/niac/2012_phase_I_fellows_landis.html

https://www.newscientist.com/article/dn12905-antique-fridge-could-keep-venus-rover-cool/

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In this week's questions show, I explain why it's probably not time to reconsider the definition of a moon, if we could make artificial gravity with a chunk of a neutron star, and why a supermassive black hole isn't the anchor for an entire galaxy.

00:47 Should we reconsider the definition of a moon?

03:35 Could we make artificial gravity with mass?

05:48 Why didn't the Big Bang collapse back into black hole?

07:47 Why can't a black hole be the anchor of the galaxy?

10:45 How far and how small can we see?

13:37 What is left after a black hole evaporates?

15:00 Could you have a star made out of something else?

16:32 Could a planet orbit a binary star?

18:29 Could aliens Planet 9?

19:24 If aliens are advanced, we're no threat

21:35 How can aliens not exist?

22:30 Why don't they put a microscope in a rover?

Want to be part of the questions show? Ask a short question on any video on my channel. I gather a bunch up each week, and answer them here.

Our Book is out!

https://www.amazon.com/Universe-Today-Ultimate-Viewing-Cosmos/dp/1624145442/

Audio Podcast version:

ITunes: https://itunes.apple.com/us/podcast/universe-today-guide-to-space-audio/id794058155?mt=2

RSS: https://www.universetoday.com/audio

What Fraser's Watching Playlist:

https://www.youtube.com/playlist?list=PLbJ42wpShvmkjd428BcHcCEVWOjv7cJ1G

Weekly email newsletter:

https://www.universetoday.com/newsletter

Weekly Space Hangout:

https://www.youtube.com/channel/UC0-KklSGlCiJDwOPdR2EUcg/

Astronomy Cast:

https://www.youtube.com/channel/UCUHI67dh9jEO2rvK--MdCSg

Support us at: https://www.patreon.com/universetoday

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Team: Fraser Cain - @fcain / frasercain@gmail.com

Karla Thompson - @karlaii / https://www.youtube.com/channel/UCEItkORQYd4Wf0TpgYI_1fw

Chad Weber - weber.chad@gmail.com

Support Universe Today Podcast

Scientists have had the opportunity to examine several asteroids in the Solar System now, and what they’ve learned is how much variety is out there, depending on the mass, distance from the Sun and composition.

Astronomers currently know of 829,400 asteroids across the Solar System, and they’d love to visit as many of them as possible to learn more about them.

Considering the price of a single spacecraft, that’s going to get expensive. Fortunately, there are places in the Solar System that have trapped a large number of asteroids in a way that a single spacecraft can visit several of them as part of a mission.

They’re at Jupiter’s L4 and L5 Lagrange points, and this week NASA approved a new mission that’ll explore 7 different asteroids over a 12-year journey.

It’s called Lucy.

Our Book is out!

https://www.amazon.com/Universe-Today-Ultimate-Viewing-Cosmos/dp/1624145442/

Audio Podcast version:

ITunes: https://itunes.apple.com/us/podcast/universe-today-guide-to-space-audio/id794058155?mt=2

RSS: https://www.universetoday.com/audio

What Fraser's Watching Playlist:

https://www.youtube.com/playlist?list=PLbJ42wpShvmkjd428BcHcCEVWOjv7cJ1G

Weekly email newsletter:

https://www.universetoday.com/newsletter

Weekly Space Hangout:

https://www.youtube.com/channel/UC0-KklSGlCiJDwOPdR2EUcg/

Astronomy Cast:

https://www.youtube.com/channel/UCUHI67dh9jEO2rvK--MdCSg

Support us at https://www.patreon.com/universetoday

More stories at https://www.universetoday.com/

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Team: Fraser Cain - @fcain / frasercain@gmail.com

Karla Thompson - @karlaii / https://www.youtube.com/channel/UCEItkORQYd4Wf0TpgYI_1fw

Chad Weber - weber.chad@gmail.com

References:

https://www.nasa.gov/feature/goddard/2019/lucy-mission-clears-critical-milestone

https://www.lpi.usra.edu/decadal/sbag/topical_wp/AndrewSRivkin-trojans.pdf

https://www.nasa.gov/content/goddard/lucy-the-first-mission-to-jupiter-s-trojans

http://lucy.swri.edu//mission/Targets.html

https://www.esa.int/Science_Exploration/Space_Science/Asteroids_Structure_and_composition_of_asteroids

https://sci.esa.int/web/mars-express/-/31031-phobos

http://lucy.swri.edu//mission/Spacecraft.html

Support Universe Today Podcast

In this week's live QA, we talked about rotating space stations, the materials that can be made in space, what telescopes and binoculars I use. And there were a lot of questions about James Webb.

04:15 When will we see a rotating space station?

09:27 Are there materials that can only be made in space?

11:11 What's my telescope?

12:51 What are my binoculars?

13:47 What's the status of the B612 Foundation?

15:16 Could we terraform Venus?

17:52 More on my binoculars

19:19 Should we build a sunshield to offset climate change?

21:43 If SLS is canceled, what happens?

26:42 What happens when there's no mass?

28:45 What are my hopes about James Webb?

31:47 Is there a finite amount of mass in the Universe?

32:07 Is there a backup James Webb?

33:45 How is time affected in zero mass?

34:15 Why launch James Webb from South America?

36:44 Borisov is coming through the ecliptic

37:37 Will LUVOIR get built?

40:35 Will James Webb find Planet X?

41:15 Is the Planetary Society a lobbiest organization?

44:20 Will we migrate to another planet?

49:36 Sea Dragon revisted?

50:47 Where would I go in the Universe?

55:46 Could we use asteroids for tourism?

58:15 What if Starship landed on Titan?

Our Book is out!

https://www.amazon.com/Universe-Today-Ultimate-Viewing-Cosmos/dp/1624145442/

Audio Podcast version:

ITunes: https://itunes.apple.com/us/podcast/universe-today-guide-to-space-audio/id794058155?mt=2

RSS: https://www.universetoday.com/audio

What Fraser's Watching Playlist:

https://www.youtube.com/playlist?list=PLbJ42wpShvmkjd428BcHcCEVWOjv7cJ1G

Weekly email newsletter:

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Weekly Space Hangout:

https://www.youtube.com/channel/UC0-KklSGlCiJDwOPdR2EUcg/

Astronomy Cast:

https://www.youtube.com/channel/UCUHI67dh9jEO2rvK--MdCSg

Support us at: https://www.patreon.com/universetoday

More stories at: https://www.universetoday.com/

Twitch: https://twitch.tv/fcain

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Like us on Facebook: https://www.facebook.com/universetoday

Instagram - https://instagram.com/universetoday

Team: Fraser Cain - @fcain / frasercain@gmail.com

Karla Thompson - @karlaii / https://www.youtube.com/channel/UCEItkORQYd4Wf0TpgYI_1fw

Chad Weber - weber.chad@gmail.com

Support Universe Today Podcast

People always ask me how I think humanity will react if we discover life somewhere out there in the Universe, whether it’s bacteria under the surface of Mars, a biosignature of alien life in the atmosphere of another world, or a radio signal from another civilization.

Will our civilization lose its collective mind and have a temper tantrum on a global scale? Will we become one of those purge planets from Rick and Morty?

Will the discovery suddenly end all religion, as we wait for guidance from our new alien overlords?

Will we gather together as a species to present a common front to whatever cosmic horrors await us beyond the Solar System?

In my opinion, if I could sum up the collective response in a single word, it would be: meh.

Our Book is out!

https://www.amazon.com/Universe-Today-Ultimate-Viewing-Cosmos/dp/1624145442/

Audio Podcast version:

ITunes: https://itunes.apple.com/us/podcast/universe-today-guide-to-space-audio/id794058155?mt=2

RSS: https://www.universetoday.com/audio

What Fraser's Watching Playlist:

https://www.youtube.com/playlist?list=PLbJ42wpShvmkjd428BcHcCEVWOjv7cJ1G

Weekly email newsletter:

https://www.universetoday.com/newsletter

Weekly Space Hangout:

https://www.youtube.com/channel/UC0-KklSGlCiJDwOPdR2EUcg/

Astronomy Cast:

https://www.youtube.com/channel/UCUHI67dh9jEO2rvK--MdCSg

Support us at https://www.patreon.com/universetoday

More stories at https://www.universetoday.com/

Twitch: https://twitch.tv/fcain

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Like us on Facebook: https://www.facebook.com/universetoday

Instagram - https://instagram.com/universetoday

Team: Fraser Cain - @fcain / frasercain@gmail.com

Karla Thompson - @karlaii / https://www.youtube.com/channel/UCEItkORQYd4Wf0TpgYI_1fw

Chad Weber - weber.chad@gmail.com

References:

https://www.cnn.com/2019/09/30/us/nasa-life-on-mars-jim-green-scn-trnd/index.html

http://www.gutenberg.org/ebooks/47015

https://archive.org/details/marsabodeoflife00loweiala/page/n8

https://blogs.scientificamerican.com/observations/im-convinced-we-found-evidence-of-life-on-mars-in-the-1970s/

https://www.lpi.usra.edu/lpi/meteorites/The_Meteorite.shtml

https://www.astrobio.net/mars/the-continuing-controversy-of-the-mars-meteorite/

Support Universe Today Podcast

In this week's questions show, I explain why we'll never know which stars have no planets. How we could prevent a catastrophe to Earth, and why aliens might still be a threat to us.

Check out more of Dustin Gibson's photographs at:

https://www.instagram.com/gibsonpics/

00:48 How many stars don't have planets?

02:29 Could we prevent a catastrophe?

05:16 No aliens would be a threat to us

07:38 Can I have any name for Patreon?

08:20 Why not put a laser on the solar sail spacecraft

09:40 How can neutrinos go faster than light?

10:45 How do you calculate exposure times for Hubble?

14:32 What would cause stars to collide

17:19 Why don't we track asteroids?

18:55 How do magnetars form?

20:36 How could we destroy the planet?

22:45 Can a brown dwarf become a star?

Want to be part of the questions show? Ask a short question on any video on my channel. I gather a bunch up each week, and answer them here.

Our Book is out!

https://www.amazon.com/Universe-Today-Ultimate-Viewing-Cosmos/dp/1624145442/

Audio Podcast version:

ITunes: https://itunes.apple.com/us/podcast/universe-today-guide-to-space-audio/id794058155?mt=2

RSS: https://www.universetoday.com/audio

What Fraser's Watching Playlist:

https://www.youtube.com/playlist?list=PLbJ42wpShvmkjd428BcHcCEVWOjv7cJ1G

Weekly email newsletter:

https://www.universetoday.com/newsletter

Weekly Space Hangout:

https://www.youtube.com/channel/UC0-KklSGlCiJDwOPdR2EUcg/

Astronomy Cast:

https://www.youtube.com/channel/UCUHI67dh9jEO2rvK--MdCSg

Support us at: https://www.patreon.com/universetoday

More stories at: https://www.universetoday.com/

Twitch: https://twitch.tv/fcain

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Team: Fraser Cain - @fcain / frasercain@gmail.com

Karla Thompson - @karlaii / https://www.youtube.com/channel/UCEItkORQYd4Wf0TpgYI_1fw

Chad Weber - weber.chad@gmail.com

Support Universe Today Podcast

No guest this week, just a live QA with me and the audience about all things space and astronomy. People had questions about how planets can capture asteroids to turn them into moons, what rocket James Webb will use to fly to space, and why you can't use antimatter to destroy a black hole.

05:45 How can a planet capture an asteroid?

07:21 Why are quasars so far from us?

09:26 How could you make a black hole of photons?

11:25 Would I rather live a year on the Moon or Mars?

12:46 What will JWST launch on

14:08 What's the limit on a planet's mass for rocketry?

17:06 Do I prefer to observe alone?

18:55 Why doesn't antimatter destroy black holes?

20:43 Will we get space engines from The Expanse?

24:05 Shouldn't we solve our problems here on Earth?

26:30 What happens to us when the Sun dies?

28:28 Why aren't there video cameras on Mars?

30:00 How do we learn about what things are made of with radio waves?

32:00 Are there any metals in space that can't find on Earth?

33:12 How do we measure distances to stars?

35:16 EMDrive

36:23 Are metals precious to the planet you're on

37:05 Will Skylon fly?

38:35 Cyanogen gas in comets

39:12 Talking to people who don't care about space

41:00 How do planets start forming?

41:48 What do I think of antimatter rockets?

43:09 Could we build an arm to lift us to space?

43:32 Should we just colonize space itself?

44:20 Is Planet 9 a black hole?

50:11 Does Canada have radio telescopes?

50:50 When will a black hole turn into regular matter again?

51:30 Wildlife on Vancouver Island

53:13 Could breakthrough starshot work to redirect asteroids?

54:25 Could we see life on Alpha Centauri?

57:00 Is Alpha Centauri visible from the North?

57:30 Would generation ships work?

Our Book is out!

https://www.amazon.com/Universe-Today-Ultimate-Viewing-Cosmos/dp/1624145442/

Audio Podcast version:

ITunes: https://itunes.apple.com/us/podcast/universe-today-guide-to-space-audio/id794058155?mt=2

RSS: https://www.universetoday.com/audio

What Fraser's Watching Playlist:

https://www.youtube.com/playlist?list=PLbJ42wpShvmkjd428BcHcCEVWOjv7cJ1G

Weekly email newsletter:

https://www.universetoday.com/newsletter

Weekly Space Hangout:

https://www.youtube.com/channel/UC0-KklSGlCiJDwOPdR2EUcg/

Astronomy Cast:

https://www.youtube.com/channel/UCUHI67dh9jEO2rvK--MdCSg

Support us at: https://www.patreon.com/universetoday

More stories at: https://www.universetoday.com/

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Team: Fraser Cain - @fcain / frasercain@gmail.com

Karla Thompson - @karlaii / https://www.youtube.com/channel/UCEItkORQYd4Wf0TpgYI_1fw

Chad Weber - weber.chad@gmail.com

Support Universe Today Podcast

Even as the first rockets were launched into space decades ago, aerospace knew it was a wasteful process. Rocket stages, motors, and complex equipment crashed into the ocean or burned up in the Earth’s atmosphere.

Could spaceplanes bring the costs down? Flying to orbit with a combination of jet engines and rockets and then safely re-enter the Earth’s atmosphere again.

Single-stage to orbit spacecraft and spaceplanes have always seemed out of reach, and actually not that practical. But what about a two-stage, fully reusable spaceplane?

Exodus Space Corporation has been secretly working on this concept for a decade now, and what they’re proposing is pretty revolutionary.

Our Book is out!

https://www.amazon.com/Universe-Today-Ultimate-Viewing-Cosmos/dp/1624145442/

Audio Podcast version:

ITunes: https://itunes.apple.com/us/podcast/universe-today-guide-to-space-audio/id794058155?mt=2

RSS: https://www.universetoday.com/audio

What Fraser's Watching Playlist:

https://www.youtube.com/playlist?list=PLbJ42wpShvmkjd428BcHcCEVWOjv7cJ1G

Weekly email newsletter:

https://www.universetoday.com/newsletter

Weekly Space Hangout:

https://www.youtube.com/channel/UC0-KklSGlCiJDwOPdR2EUcg/

Astronomy Cast:

https://www.youtube.com/channel/UCUHI67dh9jEO2rvK--MdCSg

Support us at https://www.patreon.com/universetoday

More stories at https://www.universetoday.com/

Twitch: https://twitch.tv/fcain

Follow us on Twitter: @universetoday

Like us on Facebook: https://www.facebook.com/universetoday

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Team: Fraser Cain - @fcain / frasercain@gmail.com

Karla Thompson - @karlaii / https://www.youtube.com/channel/UCEItkORQYd4Wf0TpgYI_1fw

Chad Weber - weber.chad@gmail.com

References:

https://history.nasa.gov/SP-4407/vol4/cover.pdf

https://io9.gizmodo.com/early-design-specs-show-the-space-shuttle-could-have-be-1528524224

https://www.exodus-space.com/

https://www.exodus-space.com/astroclipper/

http://fiso.spiritastro.net/telecon/Ayala_10-9-19/Ayala_10-9-19.pdf

Support Universe Today Podcast

While we’re all waiting for James Webb to launch - which it will - the Extremely Large Telescope to be constructed, and LUVOIR to get approved.

(Please get approved, please get approved.)

We’re going to need a way to pass the time. So let’s have our imaginations take flight, out into the Universe, and consider some of the most incredible ideas suggested for telescopes.

Unless you’ve been crawling through scientific journals like me, I guarantee you’ve never heard of any of them. But when I’m done, you’re going to want to fund all of them.

Our Book is out!

https://www.amazon.com/Universe-Today-Ultimate-Viewing-Cosmos/dp/1624145442/

Audio Podcast version:

ITunes: https://itunes.apple.com/us/podcast/universe-today-guide-to-space-audio/id794058155?mt=2

RSS: https://www.universetoday.com/audio

What Fraser's Watching Playlist:

https://www.youtube.com/playlist?list=PLbJ42wpShvmkjd428BcHcCEVWOjv7cJ1G

Weekly email newsletter:

https://www.universetoday.com/newsletter

Weekly Space Hangout:

https://www.youtube.com/channel/UC0-KklSGlCiJDwOPdR2EUcg/

Astronomy Cast:

https://www.youtube.com/channel/UCUHI67dh9jEO2rvK--MdCSg

Support us at https://www.patreon.com/universetoday

More stories at https://www.universetoday.com/

Twitch: https://twitch.tv/fcain

Follow us on Twitter: @universetoday

Like us on Facebook: https://www.facebook.com/universetoday

Instagram - https://instagram.com/universetoday

Team: Fraser Cain - @fcain / frasercain@gmail.com

Karla Thompson - @karlaii / https://www.youtube.com/channel/UCEItkORQYd4Wf0TpgYI_1fw

Chad Weber - weber.chad@gmail.com

References:

https://arxiv.org/ftp/arxiv/papers/1908/1908.02080.pdf

https://arxiv.org/abs/1906.05079

http://hypertelescope.org/project/hypertelescope-space/

Support Universe Today Podcast

In this week's questions show, I explain why Starship probably won't contribute to human carbon emissions, if there's a galactic Prime Directive, and if SpaceX has finally perfected the single-stage to orbit.

Featuring Tony Darnell from Deep Astronomy and the Space Junk Podcast

https://www.youtube.com/user/tdarnell

https://optcorp.com/blogs/podcast

00:30 Won't Starship cause global warming?

02:33 Do we live in a Galactic Zoo?

04:45 Has SpaceX perfected SSTO?

07:17 How will Starship's thermal protection work?

09:54 How will asteroid mining companies prospect?

11:57 What could cause binary stars to collapse?

13:48 Can tidally locked planets have a tilt?

15:16 Find Mars meteorites on the Moon

16:22 Can Hubble record video?

17:29 Can we avoid a runaway greenhouse effect?

19:05 How do we know what's happening now?

Want to be part of the questions show? Ask a short question on any video on my channel. I gather a bunch up each week, and answer them here.

Our Book is out!

https://www.amazon.com/Universe-Today-Ultimate-Viewing-Cosmos/dp/1624145442/

Audio Podcast version:

ITunes: https://itunes.apple.com/us/podcast/universe-today-guide-to-space-audio/id794058155?mt=2

RSS: https://www.universetoday.com/audio

What Fraser's Watching Playlist:

https://www.youtube.com/playlist?list=PLbJ42wpShvmkjd428BcHcCEVWOjv7cJ1G

Weekly email newsletter:

https://www.universetoday.com/newsletter

Weekly Space Hangout:

https://www.youtube.com/channel/UC0-KklSGlCiJDwOPdR2EUcg/

Astronomy Cast:

https://www.youtube.com/channel/UCUHI67dh9jEO2rvK--MdCSg

Support us at: https://www.patreon.com/universetoday

More stories at: https://www.universetoday.com/

Twitch: https://twitch.tv/fcain

Follow us on Twitter: @universetoday

Like us on Facebook: https://www.facebook.com/universetoday

Instagram - https://instagram.com/universetoday

Team: Fraser Cain - @fcain / frasercain@gmail.com

Karla Thompson - @karlaii / https://www.youtube.com/channel/UCEItkORQYd4Wf0TpgYI_1fw

Chad Weber - weber.chad@gmail.com

Support Universe Today Podcast

This week I was joined by astronaut Ron Garan to talk about his new book "Floating in Darkness". Ron is an accomplished F-16 pilot, flying combat missions during Desert Shield and Desert Storm.

He flew to space twice, first aboard STS-124, and then a six-month stay on board the International Space Station as part of Expedition 27.

Learn more about his new book:

https://publishizer.com/floating-in-darkness-/

Follow Ron on Twitter here:

https://twitter.com/Astro_Ron

Our Book is out!

https://www.amazon.com/Universe-Today-Ultimate-Viewing-Cosmos/dp/1624145442/

Audio Podcast version:

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Chad Weber - weber.chad@gmail.com

Support Universe Today Podcast

After decades of research, including multiple landers and orbiters, science can definitively say: Venus sucks. Seriously, that place is the worst, with its boiling temperature, intense pressure, sulfuric acid rain, and more.

But was it always this bad? According to new research from NASA and various universities in Sweden and the US, Venus might have actually been the first habitable world in the Solar System. And it might have maintained a reasonable climate for billions of years, finally rolling over into a runaway greenhouse effect just a few hundred million years ago.

Our Book is out!

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Chad Weber - weber.chad@gmail.com

References:

https://arxiv.org/ftp/arxiv/papers/1608/1608.00706.pdf

https://data.giss.nasa.gov/rocke3d/maps/

https://www.europlanet-society.org/could-venus-have-been-habitable/

Support Universe Today Podcast

On Saturday, September 28th, SpaceX CEO Elon Musk stood in front of an audience in Boca Chica, Texas, and presented the fully assembled SpaceX Starship, 50 meters tall and made from shiny stainless steel.

As part of his presentation, Musk showed off the history of the company’s developments so far and gave us an updated view of what Starship and its first stage Superheavy booster will look like when they’re fully operational.

It was actually a pretty short presentation, and there weren’t a lot of details. But he stuck around to answer questions from many space journalists, and we’ve got a much better idea about Starship and what happens next.

Our Book is out!

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References:

https://www.youtube.com/watch?v=sOpMrVnjYeY

Support Universe Today Podcast

My guest this week was Professor Sean Carroll from Caltech. Sean's a theoretical physicist, author of many books, and podcaster. His newest book, "Something Deeply Hidden" has just been released, presenting his ideas about the many-worlds interpretation of quantum mechanics.

Learn more about Sean Carroll here:

https://www.preposterousuniverse.com/

Subscribe to his podcast:

https://www.preposterousuniverse.com/podcast/

Follow Sean on Twitter:

https://twitter.com/seanmcarroll

Our Book is out!

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In 2017, Elon Musk laid out his grand sweeping plans for the future of SpaceX, the company that would take humanity to Mars. Over decades, tens of thousands of Starship flights would carry a million human beings to the surface of the Red Planet, the minimum Musk expects it’ll take to create a self-sustaining civilization.

The number of details in an effort like this is mind-boggling. What about the reduced gravity, radiation exposure, and space madness? What about return flights? Replacement parts? Building materials?

What’s everyone going to eat?

Our Book is out!

https://www.amazon.com/Universe-Today-Ultimate-Viewing-Cosmos/dp/1624145442/

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ITunes: https://itunes.apple.com/us/podcast/universe-today-guide-to-space-audio/id794058155?mt=2

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References:

https://www.liebertpub.com/doi/pdfplus/10.1089/space.2017.29009.emu

https://www.liebertpub.com/doi/10.1089/space.2019.0018

https://eden-iss.net/

https://www.nasa.gov/feature/how-does-your-space-garden-grow

https://www.nasa.gov/mission_pages/station/research/Giving_Roots_and_Shoots_Their_Space_APH

https://www1.villanova.edu/villanova/artsci/newsevents/2018/0119.html

https://www.cbc.ca/news/canada/prince-edward-island/pei-cricket-protein-powder-grocery-store-1.4560177

https://www.forbes.com/sites/daphneewingchow/2019/06/20/is-cultured-meat-the-answer-to-the-worlds-meat-problem/#358246444468

http://eatlikeamartian.org/

Support Universe Today Podcast

One of my most requested guests is Dr. Robert Zubrin, engineer and founder of the Mars Society. It was Dr. Zubrin's "Case for Mars" that helped inspire me to get into space journalism in the first place. We had a wide-ranging interview that updated the Case for Mars, looked at what comes next, and how current efforts are stumbling in their efforts to return humans to the Moon, and then on to Mars.

Visit the Mars Society here:

https://www.marssociety.org/

https://twitter.com/robert_zubrin

Case for Space

https://www.goodreads.com/book/show/42046662-the-case-for-space

Our Book is out!

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Support Universe Today Podcast

In this week's questions show, I explain how scientists know that meteorites came from Mars, is it dangerous to look for alien civilizations, what citizen science projects to get involved in, and more. Featuring Professor Nick Cowan from McGill University.

00:20 How do we know a meteorite came from Mars

02:27 Why look for aliens?

05:20 Observational bias finding big planets?

08:03 What projects can software engineers get involved in?

09:50 Why bother thinking about superhabitable worlds?

11:31 Shouldn't Earth be turned in the wrong direction?

13:00 Can we communicate with gravity waves?

14:19 Would electronics survive a journey of thousands of years?

16:28 Could we set up a system to communicate with Voyagers better?

18:14 What gear setup do we use?

21:13 What will enable deep space travel?

22:57 Habitable zones on a tidally locked planet?

Professor Nick Cowan

https://msi.mcgill.ca/~cowan/

Want to be part of the questions show? Ask a short question on any video on my channel. I gather a bunch up each week, and answer them here.

Our Book is out!

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Support Universe Today Podcast

This week I was joined in a livestream with Dr. David Kipping from Columbia University. We had a great interview about his research into exomoons, what new observatories will do for this field. We also talked about his idea of the Terrascope, using the Earth's atmosphere as a lens to study the Universe. And we talked about how scientists can better use the internet to communicate directly with the public about their research.

Subscribe to Dr. Kipping's YouTube Channel here:

https://www.youtube.com/channel/UCGHZpIpAWJQ-Jy_CeCdXhMA

Learn more here:

http://user.astro.columbia.edu/~dkipping/index.html

Or follow David on Twitter here:

https://twitter.com/david_kipping

Support Universe Today Podcast

I’ve said many times in the past that the Earth is the best planet in the Universe. No matter where we go, we’ll never find a planet that’s a better home to Earth life than Earth. Of course, that’s because we, and all other Earth life evolved in this environment. Evolution adapted us to this planet, and it’s unlikely we could ever find another planet this good for us.

However, is it the best planet? Are there places in the Universe which might have the conditions for more diversity of life?

Our Book is out!

https://www.amazon.com/Universe-Today-Ultimate-Viewing-Cosmos/dp/1624145442/

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References:

https://arxiv.org/abs/1301.6674

https://arxiv.org/ftp/arxiv/papers/1401/1401.2392.pdf

https://www.sciencealert.com/there-may-be-exoplanets-out-there-even-better-suited-for-life-than-earth

https://data.giss.nasa.gov/rocke3d/maps/

https://www.giss.nasa.gov/projects/astrobio/

https://asd.gsfc.nasa.gov/luvoir/reports/LUVOIR_FinalReportAppendices_2019-08-26.pdf

Support Universe Today Podcast

In this week's questions show, I explain that life on Earth has less time than you think, if there could be multiple supermassive black holes inside the Milky Way, and what would we see if Mars replaced the Moon. Featuring Anton Petrov from WhatDaMath.

Check out his channel here:

https://www.youtube.com/channel/UCciQ8wFcVoIIMi-lfu8-cjQ

00:29 When will the Earth be unlivable?

03:00 Are there more supermassive black holes inside the Milky Way?

04:48 What if Mars replaces the Moon?

06:32 Can bed bugs handle space travel?

07:37 Let's use the Moon's resources

09:25 Other methods of finding gravitational waves?

12:01 Could we put a Voyager to sleep for a long time?

13:58 Could we jump off Phobos or Deimos?

15:35 Could Alpha Centauri see the Earth?

17:24 Why refuel in space?

19:22 Are quasars dangerous?

Want to be part of the questions show? Ask a short question on any video on my channel. I gather a bunch up each week, and answer them here.

Our Book is out!

https://www.amazon.com/Universe-Today-Ultimate-Viewing-Cosmos/dp/1624145442/

Audio Podcast version:

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Chad Weber - weber.chad@gmail.com

Support Universe Today Podcast

Support Universe Today Podcast

This week I was joined by Dylan O'Donnell, an incredible astrophotographer and amateur astronomer from Australia. Dylan's photography has been featured in exhibits and websites around the world, and he's the organizer of the Starstuff Conference in Byron Bay (https://starstuff.com.au/) and has a website featuring all his astrophotography (https://deography.com/)

Check out his channel at:

https://www.youtube.com/channel/UCgOf4wBnoGg8WHHHr_h4otQ

Our Book is out!

https://www.amazon.com/Universe-Today-Ultimate-Viewing-Cosmos/dp/1624145442/

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Chad Weber - weber.chad@gmail.com

Support Universe Today Podcast

Humans to Mars. That’s the plan right? The problem is that sending humans down to the surface of Mars is one of the most complicated and ambitious goals that we can attempt. It’s a huge step to go from low Earth orbit, then lunar landings, and then all the way to Mars, a journey of hundreds of millions of kilometers and 2 years at the least.

But there are two places humans can go which are a stepping stone between Earth and Mars. Base camps that would let us gather our resources in relative safety before dropping down into that gravity well.

I’m talking about the moons of Mars: Phobos and Deimos.

Our Book is out!

https://www.amazon.com/Universe-Today-Ultimate-Viewing-Cosmos/dp/1624145442/

Audio Podcast version:

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Support us at: http://www.patreon.com/universetoday

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Karla Thompson - @karlaii / https://www.youtube.com/channel/UCEItkORQYd4Wf0TpgYI_1fw

Chad Weber - weber.chad@gmail.com

References:

https://www.youtube.com/watch?v=MZD5nnScDks

https://solarsystem.nasa.gov/moons/mars-moons/phobos/in-depth/

https://solarsystem.nasa.gov/moons/mars-moons/deimos/in-depth/

https://pdfs.semanticscholar.org/85b0/1edc59d0667525bb546281b3a12997f32204.pdf?_ga=2.250002438.1632319045.1568499640-640080446.1568499640

https://space.nss.org/media/2003-Space-Colonization-Using-Space-Elevators-From-Phobos.pdf

http://www.csc.caltech.edu/talks/hopkins.pdf

https://www.geekwire.com/2019/safest-bet-space-settlers-believe-inside-mars-moon-deimos/

Support Universe Today Podcast

We’re learning more and more about extrasolar planets, and for the first time, astronomers have discovered water vapor in the atmosphere of a planet orbiting another star. The planet is located in the habitable zone of its star, so this might even be rain.

Of course, it’s not all good news, it’s much more massive than Earth, with higher gravity, and is probably bathed in radiation from its red dwarf star. But, it’s a good start in the search for habitable places in the Universe, places where there might be life.

Our Book is out!

https://www.amazon.com/Universe-Today-Ultimate-Viewing-Cosmos/dp/1624145442/

Audio Podcast version:

ITunes: https://itunes.apple.com/us/podcast/universe-today-guide-to-space-audio/id794058155?mt=2

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What Fraser's Watching Playlist:

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Weekly email newsletter:

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Support us at: http://www.patreon.com/universetoday

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Karla Thompson - @karlaii / https://www.youtube.com/channel/UCEItkORQYd4Wf0TpgYI_1fw

Chad Weber - weber.chad@gmail.com

References:

https://www.spacetelescope.org/news/heic1916/

https://www.theguardian.com/science/2019/sep/11/rocky-super-earth-k2-18b-named-most-habitable-known-world-beyond-solar-system

https://arxiv.org/abs/1707.04292

http://exoplanet.eu/catalog/k2-18_b/

https://www.wolframalpha.com/input/?i=surface+gravity+calculator&assumption=%7B%22F%22%2C+%22GravitationalAcceleration%22%2C+%22r%22%7D+-%3E%226371.000+*+2.2+km%22&assumption=%7B%22FS%22%7D+-%3E+%7B%7B%22GravitationalAcceleration%22%2C+%22g%22%7D%7D&assumption=%7B%22F%22%2C+%22GravitationalAcceleration%22%2C+%22M%22%7D+-%3E%225.972%C3%9710%5E24+kg+*+8%22&assumption=%22FSelect%22+-%3E+%7B%7B%22GravitationalAcceleration%22%7D%7D

https://sci.esa.int/web/cosmic-vision/-/59796-esa-s-next-science-mission-to-focus-on-nature-of-exoplanets

https://www.youtube.com/watch?v=XR_uEh0qhk4

https://www.youtube.com/watch?v=8PstUvHlKEg

https://www.youtube.com/watch?v=uCTGIxmM-e4

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In this week's questions show, I talk about searching for life on Venus, trying to get to orbit with a jet, and why NASA probably shouldn't hire me. This episode features special guest SciManDan.

Check out his channel at:

https://www.youtube.com/channel/UCRtsZ5Iak9wSLsQLQ3XOAeA

00:20 Could there be life on Venus?

03:30 Could you get into orbit with a jet?

06:31 Should NASA hire me?

08:57 Will junk get trapped in the Lagrange points

10:57 Kerbal 2?

12:23 Are Earth and the planets drifting away from the Sun?

13:44 Are Type III Civilizations a huge leap?

18:29 Could you turn a gas giant into a rocky planet?

19:40 How would a Moon base be powered?

21:02 Why's it hard to go to the Sun?

22:52 Couldn't we dig deep into the Moon or Mars?

25:13 Is the Earth above or below the plane of the Milky Way?

Want to be part of the questions show? Ask a short question on any video on my channel. I gather a bunch up each week, and answer them here.

Our Book is out!

https://www.amazon.com/Universe-Today-Ultimate-Viewing-Cosmos/dp/1624145442/

Audio Podcast version:

ITunes: https://itunes.apple.com/us/podcast/universe-today-guide-to-space-audio/id794058155?mt=2

RSS: https://www.universetoday.com/audio

What Fraser's Watching Playlist:

https://www.youtube.com/playlist?list=PLbJ42wpShvmkjd428BcHcCEVWOjv7cJ1G

Weekly email newsletter:

https://www.universetoday.com/newsletter

Weekly Space Hangout:

https://www.youtube.com/channel/UC0-KklSGlCiJDwOPdR2EUcg/

Astronomy Cast:

https://www.youtube.com/channel/UCUHI67dh9jEO2rvK--MdCSg

Support us at: http://www.patreon.com/universetoday

More stories at: http://www.universetoday.com/

Twitch: https://twitch.tv/fcain

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Team: Fraser Cain - @fcain / frasercain@gmail.com

Karla Thompson - @karlaii / https://www.youtube.com/channel/UCEItkORQYd4Wf0TpgYI_1fw

Chad Weber - weber.chad@gmail.com

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Welcome back to Season 2 of my weekly live QA. Your chance to ask me your questions about space and astronomy... live. Sometimes I'll have guests, and sometimes I won't. This week... I didn't.

You wanted to know about recent news about astronauts mixing concrete in space, the formation of craters on Titan, and what might be the difficulties of people going to the Moon or Mars?

04:22 Mixing concrete on ISS?

07:44 Could you make shotcrete from regolith?

09:50 Why do some planets spin backwards?

12:22 Formation of Titan's lakes

14:02 Why don't millionaires and billionaires live on the Moon?

18:40 Will SpaceX make electric rockets?

21:21 What if Mars crashed into Jupiter?

23:12 Why are LISA and LIGO only 2-dimensional?

26:13 Could we survive without a pressure suit?

27:24 How is the Planet 9 search going?

28:25 Why hasn't Tim Dodd finished his new video?

29:19 Does gravity move in a different speed through different media?

30:46 Any difficulties in crewed missions to the Moon or Mars?

33:35 What is my opinion on the Great Filter?

34:26 How do we know how old the Universe is?

36:34 How do we avoid space madness?

38:29 Does quantum enganglement allow instant communication?

41:30 When will we prove dark matter exists?

45:39 Is it possible that dark matter is antimatter?

46:30 When will we visit Neptune again?

47:10 Does the Fermi Paradox make me less scared about AI?

48:12 Any protocols for alien contact?

49:23 Plans to send an asteroid hunter to L3

50:23 What's the deal with Saturn's rotation?

51:24 Why are we hearing about NEOs?

55:10 Do they do autopsies on astronauts?

56:34 Upcoming shows and projects

Our Book is out!

https://www.amazon.com/Universe-Today-Ultimate-Viewing-Cosmos/dp/1624145442/

Audio Podcast version:

ITunes: https://itunes.apple.com/us/podcast/universe-today-guide-to-space-audio/id794058155?mt=2

RSS: https://www.universetoday.com/audio

What Fraser's Watching Playlist:

https://www.youtube.com/playlist?list=PLbJ42wpShvmkjd428BcHcCEVWOjv7cJ1G

Weekly email newsletter:

https://www.universetoday.com/newsletter

Weekly Space Hangout:

https://www.youtube.com/channel/UC0-KklSGlCiJDwOPdR2EUcg/

Astronomy Cast:

https://www.youtube.com/channel/UCUHI67dh9jEO2rvK--MdCSg

Support us at: http://www.patreon.com/universetoday

More stories at: http://www.universetoday.com/

Twitch: https://twitch.tv/fcain

Follow us on Twitter: @universetoday

Like us on Facebook: https://www.facebook.com/universetoday

Instagram - https://instagram.com/universetoday

Team: Fraser Cain - @fcain / frasercain@gmail.com

Karla Thompson - @karlaii / https://www.youtube.com/channel/UCEItkORQYd4Wf0TpgYI_1fw

Chad Weber - weber.chad@gmail.com

Support Universe Today Podcast

We’ve reached the third part of our series on Lagrange Points, those stable spots in the Solar System, where you can sort of hover with the minimum amount of fuel.

This episode we’re going to look at the L4 and L5 points which share the orbit with a more massive object.

Part 1 - https://www.youtube.com/watch?v=0WN7lS9bpB4

Part 2 - https://www.youtube.com/watch?v=vgIZgrOZElo

Building an artificial magnetosphere

https://www.youtube.com/watch?v=pjFTke8E1jA

Our Book is out!

https://www.amazon.com/Universe-Today-Ultimate-Viewing-Cosmos/dp/1624145442/

Audio Podcast version:

ITunes: https://itunes.apple.com/us/podcast/universe-today-guide-to-space-audio/id794058155?mt=2

RSS: https://www.universetoday.com/audio

What Fraser's Watching Playlist:

https://www.youtube.com/playlist?list=PLbJ42wpShvmkjd428BcHcCEVWOjv7cJ1G

Weekly email newsletter:

https://www.universetoday.com/newsletter

Weekly Space Hangout:

https://www.youtube.com/channel/UC0-KklSGlCiJDwOPdR2EUcg/

Astronomy Cast:

https://www.youtube.com/channel/UCUHI67dh9jEO2rvK--MdCSg

Support us at: http://www.patreon.com/universetoday

More stories at: http://www.universetoday.com/

Twitch: https://twitch.tv/fcain

Follow us on Twitter: @universetoday

Like us on Facebook: https://www.facebook.com/universetoday

Instagram - https://instagram.com/universetoday

Team: Fraser Cain - @fcain / frasercain@gmail.com

Karla Thompson - @karlaii / https://www.youtube.com/channel/UCEItkORQYd4Wf0TpgYI_1fw

Chad Weber - weber.chad@gmail.com

References:

https://www.youtube.com/watch?v=0WN7lS9bpB4

https://www.jpl.nasa.gov/news/news.php?feature=3080

https://earthsky.org/earth/earths-dust-cloud-satellites-kordylewski

https://phys.org/news/2016-09-astronomers-neptune-trojans.html

https://www.nature.com/articles/s41550-017-0179

https://www.hou.usra.edu/meetings/lpsc2015/pdf/2845.pdf

https://arxiv.org/abs/1212.2816

https://space.nss.org/settlement/nasa/75SummerStudy/Table_of_Contents1.html

https://worldbuilding.stackexchange.com/questions/90432/stabilizing-a-mckendree-cylinder-habitat

Support Universe Today Podcast

In this week's questions show, I explain what I think the best uses of the Moon might be, why I'm qualified to answer questions about space, and if you could use a black hole as mirror that lets you look back in time.

00:28 What's the best use of the Moon?

03:46 What are my qualifications?

05:44 Could a black hole bend light back to us?

07:12 How can the Moon drift away?

10:18 What are black holes made of?

12:18 Could we search for aliens who have organized their stars?

15:28 Could we build gravity trains?

17:24 What if we find life on Europa?

19:18 The Solar System is the weird one

21:10 Could there be aliens that look like us?

23:36 Will VR get so good we won't want to go to space?

Want to be part of the questions show? Ask a short question on any video on my channel. I gather a bunch up each week, and answer them here.

Our Book is out!

https://www.amazon.com/Universe-Today-Ultimate-Viewing-Cosmos/dp/1624145442/

Audio Podcast version:

ITunes: https://itunes.apple.com/us/podcast/universe-today-guide-to-space-audio/id794058155?mt=2

RSS: https://www.universetoday.com/audio

What Fraser's Watching Playlist:

https://www.youtube.com/playlist?list=PLbJ42wpShvmkjd428BcHcCEVWOjv7cJ1G

Weekly email newsletter:

https://www.universetoday.com/newsletter

Weekly Space Hangout:

https://www.youtube.com/channel/UC0-KklSGlCiJDwOPdR2EUcg/

Astronomy Cast:

https://www.youtube.com/channel/UCUHI67dh9jEO2rvK--MdCSg

Support us at: http://www.patreon.com/universetoday

More stories at: http://www.universetoday.com/

Twitch: https://twitch.tv/fcain

Follow us on Twitter: @universetoday

Like us on Facebook: https://www.facebook.com/universetoday

Instagram - https://instagram.com/universetoday

Team: Fraser Cain - @fcain / frasercain@gmail.com

Karla Thompson - @karlaii / https://www.youtube.com/channel/UCEItkORQYd4Wf0TpgYI_1fw

Chad Weber - weber.chad@gmail.com

Support Universe Today Podcast