[Q&A+] LIGO's Getting Its Upgrades. What's Next?

BONUS QUESTION STARTS AT 13:00 Watch the video here (with no ads) or on YouTube: https://youtu.be/PFIJ2nw_HLI What's going on with LIGO? Which fictional spaceship is the most realistic? How will astronauts protect themselves during long time flights? And in Q&A+, what evidence will remain if humanity vanishes tomorrow? 00:00 Intro 00:24 [@Hooves1] LIGO upgrades? 02:13 [@JamesMcIntosh-r7j] aren't there a couple more LIGOs? 03:53 [@tedkrouse8222] How do we plan to protect astronauts from radiation? 07:52 [@howlmg] Can we train removing stellar contamination on the Sun? 10:36 [@paigepotter4682] What fictional spaceship design feels the most realistic? 13:00 [@paigepotter4682] If humanity vanished tomorrow, what would be left? 14:23 Filming outside