[Q&A] Rogue Gas Giant, Fish In Space, Detecting Primordial Black Holes

What effect would a rogue gas giant have if it flew through the Solar System? Can fish survive in microgravity and go to space? Do hypervelocity stars leave a wake we could detect? How much do we actually know about Proxima Centauri? All this and more in the week's Q&A!🦄 Support us on Patreon: https://patreon.com/universetoday00:00 Start01:08 [Tatooine] Can life exist on an Earth-sized moon of a gas giant?06:42 [Coruscant] Do hypervelocity stars leave a wake we could detect?10:50 [Hoth] What's the thickness of the event horizon of a black hole?13:16 [Naboo] What is the speed of gravity?18:34 [Kamino] What would be the consequences of a rouge Jupiter?21:44 [Bespin] Can fish go to space?23:34 [Mustafar] What are the temperatures of black holes?25:53 [Alderaan] How much do we actually know about Proxima Centauri?27:29 [Dagobah] Can rogue planets have an atmosphere?31:44 [Yavin] How to track possible primordial black holes?35:44 [Mandalore] Does red/blue shift include all frequencies?📺 VIDEO VERSIONhttps://youtu.be/gLGx7l_Q4yk📰 EMAIL NEWSLETTERRead by 55,000 people every Friday. Written by Fraser. No ads.Subscribe. It's FREE: https://universetoday.com/newsletter🎧 PODCASTSUniverse Today: https://universetoday.fireside.fm/Weekly Space Hangout: https://www.youtube.com/channel/UC0-KklSGlCiJDwOPdR2EUcg/Astronomy Cast: http://www.astronomycast.com/🤳 OTHER SOCIAL MEDIATwitter: https://twitter.com/fcainTwitter: https://twitter.com/universetodayFacebook: https://facebook.com/universetodayInstagram: https://instagram.com/universetoday📩 CONTACT [email protected]⚖️ LICENSECreative Commons Attribution 4.0 International (CC BY 4.0)Support Universe Today Podcast