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Episode 582: Q&A 104: Should We Reconsider The Definition Of A Moon? And More...
In this week's questions show, I explain why it's probably not time to reconsider the definition of a moon, if we could make artificial gravity with a chunk of a neutron star, and why a supermassive black hole isn't the anchor for an entire galaxy.
00:47 Should we reconsider the definition of a moon?
03:35 Could we make artificial gravity with mass?
05:48 Why didn't the Big Bang collapse back into black hole?
07:47 Why can't a black hole be the anchor of the galaxy?
10:45 How far and how small can we see?
13:37 What is left after a black hole evaporates?
15:00 Could you have a star made out of something else?
16:32 Could a planet orbit a binary star?
18:29 Could aliens Planet 9?
19:24 If aliens are advanced, we're no threat
21:35 How can aliens not exist?
22:30 Why don't they put a microscope in a rover?
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!
https://www.amazon.com/Universe-Today-Ultimate-Viewing-Cosmos/dp/1624145442/
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:
https://www.youtube.com/playlist?list=PLbJ42wpShvmkjd428BcHcCEVWOjv7cJ1G
Weekly email newsletter:
https://www.universetoday.com/newsletter
Weekly Space Hangout:
https://www.youtube.com/channel/UC0-KklSGlCiJDwOPdR2EUcg/
Astronomy Cast:
https://www.youtube.com/channel/UCUHI67dh9jEO2rvK--MdCSg
Support us at: https://www.patreon.com/universetoday
More stories at: https://www.universetoday.com/
Twitch: https://twitch.tv/fcain
Follow us on Twitter: @universetoday
Like us on Facebook: https://www.facebook.com/universetoday
Instagram - https://instagram.com/universetoday
Team: Fraser Cain - @fcain / [email protected]
Karla Thompson - @karlaii / https://www.youtube.com/channel/UCEItkORQYd4Wf0TpgYI_1fw
Chad Weber - [email protected]
Support Universe Today Podcast
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By Fraser Cain
4.7
516516 ratings
In this week's questions show, I explain why it's probably not time to reconsider the definition of a moon, if we could make artificial gravity with a chunk of a neutron star, and why a supermassive black hole isn't the anchor for an entire galaxy.
00:47 Should we reconsider the definition of a moon?
03:35 Could we make artificial gravity with mass?
05:48 Why didn't the Big Bang collapse back into black hole?
07:47 Why can't a black hole be the anchor of the galaxy?
10:45 How far and how small can we see?
13:37 What is left after a black hole evaporates?
15:00 Could you have a star made out of something else?
16:32 Could a planet orbit a binary star?
18:29 Could aliens Planet 9?
19:24 If aliens are advanced, we're no threat
21:35 How can aliens not exist?
22:30 Why don't they put a microscope in a rover?
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!
https://www.amazon.com/Universe-Today-Ultimate-Viewing-Cosmos/dp/1624145442/
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:
https://www.youtube.com/playlist?list=PLbJ42wpShvmkjd428BcHcCEVWOjv7cJ1G
Weekly email newsletter:
https://www.universetoday.com/newsletter
Weekly Space Hangout:
https://www.youtube.com/channel/UC0-KklSGlCiJDwOPdR2EUcg/
Astronomy Cast:
https://www.youtube.com/channel/UCUHI67dh9jEO2rvK--MdCSg
Support us at: https://www.patreon.com/universetoday
More stories at: https://www.universetoday.com/
Twitch: https://twitch.tv/fcain
Follow us on Twitter: @universetoday
Like us on Facebook: https://www.facebook.com/universetoday
Instagram - https://instagram.com/universetoday
Team: Fraser Cain - @fcain / [email protected]
Karla Thompson - @karlaii / https://www.youtube.com/channel/UCEItkORQYd4Wf0TpgYI_1fw
Chad Weber - [email protected]
Support Universe Today Podcast
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