[Overtime Q&A] Telescopes Shooting Lasers, Assembling Telescopes in Space, Growing Plants on Mars

What are those lasers shooting out from telescopes? Can we build a space elevator? Could we grow plants in Mars regolith? Why not assemble telescopes in space? Answering all these questions and more in this week's Overtime 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-club00:00 Start00:50 Could we plant in Mars regolith?02:35 What is the bright laser coming out of telescopes?06:08 Will telescopes be assembled in space?07:59 Would we have our money's worth if JWST broke?08:45 Any updates on space elevators?12:52 Will Breakthrough Starshot happen soon?15:24 What about a low-mass black hole?16:37 Could Gemini North and South do optical interferometry?19:06 Thoughts on Europa?21:46 How do galaxies collide if the Universe is expanding22:45 Could an LCD screen be a coronagraph?26:46 How does light travel farther than 13.8 billion light-years?28:19 Are we looking for machine civilizations?📺 VIDEO VERSIONhttps://youtu.be/CB5JBkDqmu0📰 EMAIL NEWSLETTERRead by 60,000 people every Friday. Written by Fraser. No ads.Subscribe. It's FREE: https://universetoday.com/newsletter🎧 PODCASTSUniverse Today: https://universetoday.fireside.fm/Astronomy Cast: http://www.astronomycast.com/🤳 OTHER SOCIAL MEDIATwitter: https://twitter.com/fcainTwitter: https://twitter.com/universetodayFacebook: https://facebook.com/universetodayInstagram: https://instagram.com/universetoday📩 CONTACT [email protected]⚖️ LICENSECreative Commons Attribution 4.0 International (CC BY 4.0)Support Universe Today Podcast