Science
The new season has begun! We're back with an all-new series of question shows. In this week's episode, I provide a quick guide to seeing fireballs (bolides), which are the brightest meteors you can see (and sometimes hear). I explain the philosophy behind Dyson Spheres, and explain why dark matter can't be made out of antimatter. 00:00 Start 00:43 How big are really bright meteors? 04:15 Are Dyson Spheres just pure fantasy? 08:19 What would it take to resolve features on Proxima B? 11:32 Could anti-matter be dark matter? 12:23 Is Jupiter a failed star? 13:15 Would the transmit method let us detect planets in Andromeda? 14:55 Disappearing stars? 17:38 No more Ewok Forest? 18:50 Could a collider create a dangerous black hole? 20:57 Should we find Oumuamua? 23:21 Could we detect techno signatures in Andromeda? 24:45 What's happening on Mars? 27:43 Could we detect an extraterrestrial war? 28:54 Will space-based power work? 30:43 Will Mars be a knowledge-based economy? 32:53 Will we ever live on Venus? 33:21 Is the Moon moving away? 34:09 Does NASA have new space suits for Artemis? 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.