Episode 795: Q&A 175: How Do Astronomers Measure Redshift? And More...
Universe Today Podcast - A podcast by Fraser Cain
In this week's Questions and Answers show, I explain how astronomers use the Doppler Effect to know if objects are moving towards or away from us, I give my thoughts on Starlink as a user, and I suggest ideas on how to become a better writer. 00:00 Start 01:50 How do we know light is red or blue shifted? 04:24 What do I think of Starlink? 08:07 Why don't we visit the atmosphere of Venus? 10:33 What do I like about my job? 12:54 When is something standing still? 14:39 What is the Sun an average star? 16:16 How do we know we're not special? 18:06 What will sanctions on Russia do to space exploration? 22:24 Will the US be patrolling the Moon? 24:09 Any advice for being a writer? 27:14 Why are we sending probes to L2? 28:36 Could we find life around red dwarfs? 30:18 Where are the stars that formed with the Sun? 32:32 How can Parker Solar Probe survive being close to the Sun? 34:13 How would I spend a billion dollars? 36:24 What's my most controversial opinion? 36:48 Would tides be a problem for a habitable moon? 38:04 Can you collect meteorites? 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. š OUR WEBSITE: āāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāā https://www.universetoday.com/ š PODCAST LINKS: āāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāā RSS: https://universetoday.com/audio iTunes: https://universetoday.com/itunes Spotify: https://universetoday.com/spotify š EMAIL NEWSLETTER: āāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāā Read by 50,000 people every Friday. Written by Fraser. No ads. Subscribe Free: https://universetoday.com/newsletter š OTHER PODCASTS: āāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāā 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 š JOIN OUR COMMUNITY: āāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāā Patreon: https://patreon.com/universetoday š OTHER SOCIAL MEDIA: āāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāā 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 š CONTACT FRASER: āāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāā Email: [email protected] š LICENSE: āāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāāā 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.Support Universe Today Podcast
