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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.
\\n\\nCheck out more of Dustin Gibson\'s photographs at:
\\nhttps://www.instagram.com/gibsonpics/
00:48 How many stars don\'t have planets?
\\n02:29 Could we prevent a catastrophe?
\\n05:16 No aliens would be a threat to us
\\n07:38 Can I have any name for Patreon?
\\n08:20 Why not put a laser on the solar sail spacecraft
\\n09:40 How can neutrinos go faster than light?
\\n10:45 How do you calculate exposure times for Hubble?
\\n14:32 What would cause stars to collide
\\n17:19 Why don\'t we track asteroids?
\\n18:55 How do magnetars form?
\\n20:36 How could we destroy the planet?
\\n22:45 Can a brown dwarf become a star?
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.
\\n\\nOur Book is out!
\\nhttps://www.amazon.com/Universe-Today-Ultimate-Viewing-Cosmos/dp/1624145442/
Audio Podcast version:
\\nITunes: https://itunes.apple.com/us/podcast/universe-today-guide-to-space-audio/id794058155?mt=2
\\nRSS: https://www.universetoday.com/audio
What Fraser\'s Watching Playlist:
\\nhttps://www.youtube.com/playlist?list=PLbJ42wpShvmkjd428BcHcCEVWOjv7cJ1G
Weekly email newsletter:
\\nhttps://www.universetoday.com/newsletter
Weekly Space Hangout:
\\nhttps://www.youtube.com/channel/UC0-KklSGlCiJDwOPdR2EUcg/
Astronomy Cast:
\\nhttps://www.youtube.com/channel/UCUHI67dh9jEO2rvK--MdCSg
Support us at: https://www.patreon.com/universetoday
\\nMore stories at: https://www.universetoday.com/
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Team: Fraser Cain - @fcain / frasercain@gmail.com
\\nKarla Thompson - @karlaii / https://www.youtube.com/channel/UCEItkORQYd4Wf0TpgYI_1fw
\\nChad Weber - weber.chad@gmail.com