Rogue Gas Giant, Fish In Space, Detecting Primordial Black Holes | Q&A 212

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/universetoday 00:00 Start 01:08 [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? 📰 EMAIL NEWSLETTER Read by 60,000 people every Friday. Written by Fraser. No ads. Subscribe Free: https://universetoday.com/newsletter 🎧 PODCASTS Universe Today: https://universetoday.fireside.fm/ Weekly Space Hangout: https://www.youtube.com/channel/UC0-KklSGlCiJDwOPdR2EUcg/ Astronomy Cast: http://www.astronomycast.com/ 🤳 OTHER SOCIAL MEDIA Twitter: https://twitter.com/fcain Twitter: https://twitter.com/universetoday Facebook: https://facebook.com/universetoday Instagram: https://instagram.com/universetoday 📩 CONTACT FRASER frasercain@gmail.com ⚖️ LICENSE Creative Commons Attribution 4.0 International (CC BY 4.0) You are free to use my work for any purpose you like, just mention me as the source and link back to this video.