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Episode 579: Q&A 103: How Many Stars Have Zero Planets? And More...
In this week's questions show, I explain why we'll never know which stars have no planets. How we could prevent a catastrophe to Earth, and why aliens might still be a threat to us.Check out more of Dustin Gibson's photographs at:https://www.instagram.com/gibsonpics/00:48 How many stars don't have planets?02:29 Could we prevent a catastrophe?05:16 No aliens would be a threat to us07:38 Can I have any name for Patreon?08:20 Why not put a laser on the solar sail spacecraft09:40 How can neutrinos go faster than light?10:45 How do you calculate exposure times for Hubble?14:32 What would cause…
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