Why the Universe's Expansion Doesn't Make Sense

Astrum Space

The Hubble tension problem is breaking cosmology.


Cosmology is in crisis. Scientists have argued for decades about how and why the universe is expanding. Now, after careful measurements using multiple methods, the main two don’t add up. What do we do when our measurements of the universe don’t match up with our models? Are all of our theories wrong?▀▀▀▀▀▀

If you love learning about science as much as I do, head to http://brilliant.org/astrum to start for free. You'll also receive 20% off a premium annual subscription, giving you unlimited access to everything on Brilliant.


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More description

The Hubble tension problem is breaking cosmology.


Cosmology is in crisis. Scientists have argued for decades about how and why the universe is expanding. Now, after careful measurements using multiple methods, the main two don’t add up. What do we do when our measurements of the universe don’t match up with our models? Are all of our theories wrong?▀▀▀▀▀▀

If you love learning about science as much as I do, head to http://brilliant.org/astrum to start for free. You'll also receive 20% off a premium annual subscription, giving you unlimited access to everything on Brilliant.


▀▀▀▀▀▀

Astrum's newsletter has launched! Want to know what's happening in space? Sign up here: ⁠https://astrumspace.kit.com⁠
A huge thanks to our Patreons who help make these videos possible. Sign-up here: https://bit.ly/4aiJZNF

2025-11-08 21 min
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