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Episode 788: Q&A 172: Why Do We Assume Extraterrestrials Will Be Hostile? And More...
In this week's questions and answers show, I explain why people might see extraterrestrials as a threat. What could we learn about astronomy if we lived at the center of a supervoid, and how far away are we from the Big Bang?00:00 Start01:10 Why do we assume extraterrestrials are evil?07:40 Could we see anything from within a supervoid?09:40 What if we lived near the Big Bang?10:25 Will James Webb ever look at Earth?11:34 What's the benefit of helium 3?14:47 Can we take animals to Mars?17:13 Will machines do all our exploring?20:36 Was the Universe as small as a grapefruit?21:42 Does the…
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