There’s the Curiosity Rover, On the Move, Seen from Space

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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.

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 us

07:38 Can I have any name for Patreon?

08:20 Why not put a laser on the solar sail spacecraft

09:40 How can neutrinos go faster than light?

10:45 How do you calculate exposure times for Hubble?

14:32 What would cause stars to collide

17:19 Why don’t we track asteroids?

18:55 How do magnetars form?

20:36 How could we destroy the planet?

22:45 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.

Our Book is out!

Audio Podcast version:

ITunes: https://itunes.apple.com/us/podcast/universe-today-guide-to-space-audio/id794058155?mt=2

RSS: https://www.universetoday.com/audio

What Fraser’s Watching Playlist:

Weekly email newsletter:

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Weekly Space Hangout:

https://www.youtube.com/channel/UC0-KklSGlCiJDwOPdR2EUcg/

Astronomy Cast:

https://www.youtube.com/channel/UCUHI67dh9jEO2rvK–MdCSg

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Team: Fraser Cain – @fcain / [email protected]

Karla Thompson – @karlaii / https://www.youtube.com/channel/UCEItkORQYd4Wf0TpgYI_1fw

Chad Weber – [email protected]

Support Universe Today podcasts with Fraser Cain





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