Episode 668: Q&A 122: How Will We Know It's Alien Life? And More...

In this week's episode, I answer questions about alien life, why the ISS is at its current altitude, and of course, many questions about black holes.00:00 Start00:11 How do we know it's life?02:00 Could smaller planets form directly?04:33 Any way to service Hubble?05:55 Boost the station up? What does that mean?07:18 If you went the speed of light to 10 light-years away...08:40 Will we change our DNA?11:34 Is Paul really a Doctor?15:13 Have any stars gotten closer than Alpha Centauri?16:13 Why can't you escape an event horizon?17:30 Are black holes a singularity?19:44 Why have we found so many hot Jupiters?22:25 Why is ISS at its current altitude?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=2RSS: https://www.universetoday.com/audioWeekly email newsletter:https://www.universetoday.com/newsletterWeekly Space Hangout:https://www.youtube.com/channel/UC0-KklSGlCiJDwOPdR2EUcg/Astronomy Cast:https://www.youtube.com/channel/UCUHI67dh9jEO2rvK--MdCSgSupport us at https://www.patreon.com/universetodayMore stories at https://www.universetoday.com/Twitch: https://twitch.tv/fcainFollow us on Twitter: https://twitter.com/universetodayLike us on Facebook: https://www.facebook.com/universetodayInstagram - https://instagram.com/universetodayTeam: Fraser Cain - @fcain / [email protected] Thompson - @karlaii / https://www.youtube.com/channel/UCEItkORQYd4Wf0TpgYI_1fwChad Weber - [email protected] Universe Today Podcast