How cold does it get in the shadows on the Moon? What's going on with dark matter research? Can we chase Oumuamua with a solar sail spacecraft? Will we ever face a war for the Moon? Answering all these questions 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 00:29 [Andoria] How cold do shadows on the Moon get? 05:34 [Vulcan] Why are dark matter halos spherical? 08:48 [Risa] Are we alone in the Universe? 12:26 [Aeturen] Will there be a war for the Moon? 15:40 [Vendikar] Current obsessions 19:58 [Remus] What's going on with dark matter? 23:52 [Janus] Can we catch Oumuamua with a solar sail? 29:07 [Cait] What are the Hawking radiation particles? 29:52 [Betazed] What caused the Big Bang? 29:57 [Cheleb] How to transfer energy from space down to Earth? 33:49 [Nimbus] Will dark energy eventually decline? 36:44 [Belos] Is the risk of solar flares overblown or unappreciated? 📺 VIDEO VERSION https://youtu.be/f3JrIf3Lu_U 📰 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 [email protected] ⚖️ LICENSE Creative Commons Attribution 4.0 International (CC BY 4.0) Support Universe Today Podcast