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 Start

01:10 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 expansion of the Universe travel faster than the speed of light?

23:04 Should we be worried about rogue black holes?

25:14 When will we see the calibration star from James Webb?

27:08 Did the Three-Body Problem change my opinion about extraterrestrials?

30:07 Could there have been many Big Bangs and other universes?

31:52 What is the Oort Cloud?

33:00 Why do stars like Sirius shimmer?

35:15 Will James Webb see the first stars?

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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