[Q&A] Galaxy Level Threats, The Truth About Binary Stars, Rogue Gravitational Waves

What percentage of stars live in binary systems? Are there Lagrange points all the way down? Can there be a rogue gravitational wave? Why do stars twinkle? Answering all these questions and more in this week's Q&A show. 🦄 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 00:24 [Andoria] Do most stars really live in binary systems? 05:44 [Vulcan] Which events could be galaxy-killers? 08:20 [Risa] Is it Lagrange points all the way down? 10:48 [Aeturen] Do binary stars have Lagrange points? 13:29 [Vendikar] Star Wars planets vs Star Trek planets 14:20 [Remus] Why some galaxies are "inactive"? 17:19 [Janus] What is the meaning of life? 18:19 [Cait] Is AI just overhyped marketing? 22:43 [Betazed] How big is the observable Universe? 25:57 [Cheleb] Could life exist on a tidally locked planet around a red dwarf? 29:25 [Nimbus] Why do stars twinkle? 31:01 [Belos] How to study astronomy as a hobby? 35:07 [Lyar] Can rogue gravity waves exist? 37:15 [Zalcon] Would aliens also have the scientific method? 📺 VIDEO VERSION https://youtu.be/s0C-OmBlIiQ 📰 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)