Episode 712: Q&A 133: What's Causing the Expansion of the Universe? And More...
In this week's QA, I talk about what's driving the expansion of the Universe, how big the observable Universe is to the actual Universe, and what will happen to dogs in gravity.
00:00 Start
00:26 What's driving the expansion of the Universe?
04:01 How big is the observable Universe compared to the actual Universe?
07:25 Do people watch videos or listen to my podcasts?
10:37 Will dogs enjoy lunar gravity?
12:59 Why aren't we looking deeper in the Kuiper Belt?
15:54 What would be some good ways to explore lava tubes?
19:36 What happened to the Overwhelmingly Large Telescope?
22:48 Would space LIGO be more sensitive?
27:56 What's the most like Great Filter?
31:07 Why do we talk about distance in form of time?
35:14 Any future collaborations with Isaac Arthur?
35:58 How long will the Mars helicopter survive?
40:07 When will NASA incorporate Starship into its plans?
42:15 How dangerous is the Kessler Syndrome?
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