[Q&A] True Size of the Universe, Inescapable Planets, Magnetic Poles Reversal

Was the Universe ever the size of an orange or a basketball? Can life exist on planets that cannot be escaped? Can the asteroid belt ever produce a new planet? Is the CMB slowly changing over time? What happens at the very edge of the observable Universe? All this and more in this week's Q&A! 🦄 Support us on Patreon: https://patreon.com/universetoday 📚 Suggest books in the book club: https://www.goodreads.com/group/show/1198440-universe-today-book-club 00:00 Start 00:41 [Tatooine] Was the Universe ever the size of an orange? 05:40 [Coruscant] Is the CMB changing over time? 07:49 [Hoth] What happens at the edge of the Universe? 09:38 [Naboo] What are the chances for a habitable moon at Alpha Cen? 12:16 [Kamino] What happened to SOFIA's plane? 15:00 [Bespin] Is magnetic pole reversal a thing? 17:34 [Mustafar] What's the current state of orbital refuelling? 21:35 [Alderaan] Can a planet orbit binary stars? 23:47 [Dagobah] How can we use gravitational waves? 25:59 [Yavin] Does the ISS need refuelling? 26:45 [Mandalore] Can life exist on inescapable planets? 29:43 [Geonosis] Can what happens inside very dense neutron stars be extended to black holes? 31:58 [Corellia] Can the asteroid belt produce a new planet in our solar system? 33:13 [Crait] Can a simulated Universe become indistinguishable from a real one? 📺 VIDEO VERSION https://youtu.be/wXUHnkbj_z0 📰 EMAIL NEWSLETTER Read by 60,000 people every Friday. Written by Fraser. No ads. Subscribe. It's FREE: https://universetoday.com/newsletter 🎧 PODCASTS Universe Today: https://universetoday.fireside.fm/ 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)