Episode 751: Q&A 150: What is Space Dust, Anyway? And More...

In this week's questions and answer show, I explain how all the dust in space forms, could life be Von Neumann probes, why do people think black holes lead to another universe, and more... 00:00 Start 00:57 What is space dust? 05:14 Does the Kardashev scale make sense? 08:43 Could life on Earth be Von Neumann probes? 11:31 What should I point my telescope at? 14:23 Why do people think black holes go somewhere? 16:36 Why are we seeing so many asteroids? 19:36 If we can track space debris, shouldn't we be able to detect UFOs? 21:42 Would a warp drive be able to travel within the event horizon of a black hole? 22:59 Could we investigate the atmosphere of gas giants? 26:41 What's the first resource we'll mine off Earth? 29:05 How big is a galaxy? 30:42 Any benefit to stationing a telescope in the outer Solar System? 33:07 What will Space Force accomplish? Want to be part of the questions show? Ask a short question on any video on my channel. I gather a bunch up each week and answer them here. ???? OUR WEBSITE: ════════════════════════════════════ https://www.universetoday.com/ ???? PODCAST LINKS: ════════════════════════════════════ RSS: https://universetoday.com/audio iTunes: https://universetoday.com/itunes Spotify: https://universetoday.com/spotify ???? EMAIL NEWSLETTER: ════════════════════════════════════ Read by 50,000 people every Friday. Written by Fraser. No ads. Subscribe Free: https://universetoday.com/newsletter ???? OTHER PODCASTS: ════════════════════════════════════ Weekly Space Hangout: Weekly news roundup with Fraser, special guests, and other space journalists. RSS: https://www.universetoday.com/feed/wshaudio/ iTunes: https://podcasts.apple.com/ca/podcast/weekly-space-hangout-audio/id836926769 YouTube: https://www.youtube.com/channel/UC0-KklSGlCiJDwOPdR2EUcg/ Astronomy Cast: Award-winning, long-running deep dive into space and astronomy with Fraser and Dr. Pamela Gay. RSS: https://astronomycast.libsyn.com/rss/ iTunes: https://podcasts.apple.com/ca/podcast/astronomy-cast/id191636169?mt=2 YouTube: https://www.youtube.com/channel/UCUHI67dh9jEO2rvK--MdCSg ???? JOIN OUR COMMUNITY: ════════════════════════════════════ Patreon: https://patreon.com/universetoday ???? OTHER SOCIAL MEDIA: ════════════════════════════════════ Twitter: https://twitter.com/fcain Twitter: https://twitter.com/universetoday Facebook: https://facebook.com/universetoday Instagram: https://instagram.com/universetoday Twitch: https://twitch.tv/fcain ???? CONTACT FRASER: ════════════════════════════════════ Email: frasercain@gmail.com ???? LICENSE: ════════════════════════════════════ Creative Commons Attribution 4.0 International (CC BY 4.0) You are free to use my work for any purpose you like, just mention me as the source and link back to this video.

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