Universe Today Podcasts With Fraser Cain

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 f