Science
In this week's live questions and answer show, I explain how astronomers measure the distance to gravitational wave events, how clean are spacecraft sent to Mars, and would it be possible to have a sample return mission from Titan? https://www.universetoday.com/150507/a-titan-mission-could-refuel-on-site-and-return-a-sample-to-earth/ 00:00 Start 00:25 How do we calculate the distance of gravitational waves? 03:36 Have Mars spacecraft been sterilized? 05:54 Is a sample return mission possible from Titan? 09:11 How fast would time go if there was no gravity? 11:01 Could a tiny vehicle fly autonomously around the ISS? 12:18 Is NASA planning to impact an asteroid? 14:06 Could space missions be build cheaper? 16:26 What science experiments could be done on a Moon base? 18:50 Will there still be time at the end of the Universe? 20:25 Would a rogue planet catch us off guard? 22:15 Could landers build their own rovers? 24:23 How do launch platforms deal with the rocket exhaust. 25:23 Which solution to the Fermi Paradox is my favorite? 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.