In this week's questions show, I answer questions about how the International Space Station stays above the Earth's atmosphere, does dark matter need a better name? And how do astronomers know they're looking at exoplanets and not sunspots?
Michael Rodruck with Pennsylvania State University
https://sites.psu.edu/mrodruck/
00:18 How does the ISS stay up?
01:54 Does dark matter need a better name?
04:12 Could planets orbit something that isn't a star?
07:00 GOTO Telescopes
09:22 How do we know it's exoplanets and not sunspots?
11:55 Interstellar travel without wormholes?
14:23 Why make Mars habitable?
16:38 Have we mapped Venus?
18:23 What would it feel like to stand on a massive disk?
20:25 Can dark matter get concentrated into a black hole?
22:30 Are there even closer black holes?
24:21 How do we know how many stars in the Milky Way?
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://podcasts.apple.com/us/podcast/universe-today-guide-to-space-audio/id794058155?mt=2
RSS: https://www.universetoday.com/audio
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: https://twitter.com/universetoday
Like us on Facebook: https://www.facebook.com/universetoday
Instagram - https://instagram.com/universetoday
Team: Fraser Cain - @fcain / frasercain@gmail.com
Karla Thompson - @karlaii / https://www.youtube.com/channel/UCEItkORQYd4Wf0TpgYI_1fw
Chad Weber - weber.chad@gmail.com