[Q&A] Things to See Before You Die, Reigniting A Dead Star, Types of Black Holes

How do we know that Psyche is a metal asteroid? Did primordial gravitational waves stretch when inflation happened? When do we finally get more Trappist-1 data from JWST? Can a dead star possibly reignite? 🦄 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 00:53 [Andoria] Why is the Ice Cube Observatory at the South Pole? 05:49 [Vulcan] Can a dead star reignite? 09:51 [Risa] What about asteroid mining? 15:18 [Aeturen] How do we know Psyche is a metal asteroid? 17:40 [Vendikar] Are there different types of black holes? 21:13 [Remus] How to monitor auroras? 24:30 [Janus] How fast do gravitational waves go? 26:23 [Cait] How many black holes are there? 29:40 [Betazed] What if you go too close to a gravitational wave event? 31:45 [Cheleb] Astronomy bucket list? 35:13 [Nimbus] Trappist-1d and 1e from JWST. Wen? 37:41 [Belos] From how far away can you detect life on Earth? 📺 VIDEO VERSION https://youtu.be/aUyevaUmAbo 📰 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)