Shrinking Sgr A*, Prime Directive for Mars, Dark Energy Detectors | Q&A 270

Can there be Dark Energy detectors? When will Sgr A* start shrinking? Should the Prime Directive apply to Mars? Can we bring a proper observatory in space? Answering all these questions and more in this week's Q&A show.

🦄 Support us on Patreon:
https://patreon.com/universetoday

📚 Suggest books in the book club:
https://www.goodreads.com/group/show/1198440-universe-today-book-club

00:00 Start
00:29 [Alaris] What about Dark Energy detectors?
08:40 [Ardena] Why don't we see different constellations during the year?
11:15 [Asuria] When will Sagittarius A* start shrinking?
13:42 [Belote] Can we build a space station observatory?
18:44 [Belsa] How do we see objects falling into black holes?
20:14 [Cartego] How will interstellar communication work?
21:48 [Chulak] Should the Prime Directive apply to Mars?
26:18 [Dakara] Does Mars have meteors from Earth?
27:32 [Edora] Why do comets leave tails?
29:03 [Goronak] Can black holes explode?
30:43 [Hadante] Does liver damage make Mars trips impossible?

📰 EMAIL NEWSLETTER
Read by 70,000 people every Friday. Written by Fraser. No ads.
Subscribe for FREE: https://universetoday.com/newsletter

🎧 PODCASTS
Universe Today: https://universetoday.fireside.fm/
Astronomy Cast: http://www.astronomycast.com/

🤳 OTHER SOCIAL MEDIA
Mastodon: astrodon.social/@fcain
Twitter: https://twitter.com/fcain
Twitter: https://twitter.com/universetoday
Facebook: https://facebook.com/universetoday
Instagram: https://instagram.com/universetoday

📩 CONTACT FRASER
[email protected]

⚖️ 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.