[Q&A] Kuiper Belt Orbiter, Naming Planet 9, Most Perfect Spheres

Could we detect life on Earth from Neptune's orbit? Is the Moon shrinking over time? Why don't we send an orbiter the the Kuiper belt? What should we call Planet 9 if we find it? 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] Could we detect Earth life from Neptune's orbit? 04:47 [Vulcan] Will we ever send an orbiter to the Kuiper belt? 07:57 [Risa] Is the Moon shrinking? 11:23 [Aeturen] Plans for the April eclipse? 13:25 [Vendikar] What happens when gravitational waves collide? 14:18 [Remus] Do photons experience time? 16:04 [Janus] What would be considered an unequivocal biosignature? 21:13 [Cait] What should we name Planet 9? 22:07 [Betazed] How soon can we recycle space junk? 25:04 [Cheleb] Did sci-fi become less compelling? 27:22 [Nimbus] How did Moon effect evolution on Earth? 30:28 [Belos] Are event horizons most perfect spheres in the Universe? 32:14 [Lyar] Is it possible to move from our current universe to the previous one? 35:36 [Zalcon] Why can't dark matter be objects? 📺 VIDEO VERSION https://youtu.be/WZUhtAPPbg0 📰 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)