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Published: Aug. 31, 2019, 1 a.m.

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In this week\'s questions show, I introduce Ona, by request. I explain why I don\'t think going to space is going to fix the big challenges that humanity faces, and how do astronomers figure out how big a planet is?

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Talking about existential threats with Phil Torres
\\nhttps://www.youtube.com/watch?v=XKYTrKapyrs

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00:00 Meet Ona
\\n02:00 Will going to space fix our evil humanness?
\\n04:40 Sparks under the space shuttle main engine
\\n05:27 How do we know how big a planet is?
\\n07:23 Can we push the Earth outward?
\\n10:03 Why make so many telescopes?
\\n11:50 Will we see less of the Universe in the future?
\\n13:16 Will we have space colonies in my lifetime?
\\n15:50 Is life beyond the scope of our ability to observe?
\\n17:56 What about planets with long orbital periods?
\\n19:57 What would happen if magnetars collided?
\\n21:44 What will the CMB look like in billions of years?

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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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Our Book is out!
\\nhttps://www.amazon.com/Universe-Today-Ultimate-Viewing-Cosmos/dp/1624145442/

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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

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What Fraser\'s Watching Playlist:
\\nhttps://www.youtube.com/playlist?list=PLbJ42wpShvmkjd428BcHcCEVWOjv7cJ1G

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Weekly email newsletter:
\\nhttps://www.universetoday.com/newsletter

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Weekly Space Hangout:
\\nhttps://www.youtube.com/channel/UC0-KklSGlCiJDwOPdR2EUcg/

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Astronomy Cast:
\\nhttps://www.youtube.com/channel/UCUHI67dh9jEO2rvK--MdCSg

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Support us at: http://www.patreon.com/universetoday
\\nMore stories at: http://www.universetoday.com/
\\nTwitch: https://twitch.tv/fcain
\\nFollow us on Twitter: @universetoday
\\nLike us on Facebook: https://www.facebook.com/universetoday
\\nInstagram - https://instagram.com/universetoday

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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

Support Universe Today Podcast

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