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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 Start01:01 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…
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