Episode 774: Q&A 164: Could Too Much Gravity Prevent a Civilization Going to Space? And More...

In this week's live questions and answers show, I speculate what kind of civilization could be permanently stuck on the surface of their planet, if rival nations could shoot down each other's spacecraft, and how do I really feel about the Space Launch System?

00:00 Start

01:01 How much gravity makes spaceflight impossible?

04:40 Could a rival shoot down a rocket during launch?

07:07 Should I apologize for advocating for SLS?

11:50 Do photons experience time?

13:42 Can you see Earth's lights from the Moon?

15:28 Can we detect exoplanets with their magnetic fields?

17:27 What missions do I wish were never cut?

20:21 Does finding life mean we're doomed?

22:45 Are galaxies orbiting something bigger?

23:42 Can a star collapse directly into a black hole?

25:36 Should we move away from complex telescopes?

29:03 What does it cost to use Hubble?

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.

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