[Q&A+] Approaching Rogue Black Holes, Moon VS Mars, Other Oort Clouds

BONUS QUESTION STARTS AT 13:54

Watch the video here (with no ads) or on YouTube: https://youtu.be/JHFXyJmaHbw

Could we spot a black hole approaching us? Is the Moon just a distraction on the way to Mars? Why don't we see other stars' Oort clouds? And in Q&A+, can the make it rain on Mars?

• 00:00 Start

• 00:23 [@keithromig] Is the Moon a distraction from Mars?

• 04:10 [@vistotutti6037] Should we put a steam engine on the Moon?

• 06:25 [@ashd.007] What if a rogue black hole comes our way?

• 08:26 [@mrjp2149] A better description for a black hole

• 09:42 [@allixandra] Is the asteroid belt a failed planet?

• 10:46 [@EdSceptic-y2e] Why can't we see other stars' Oort clouds?

• 11:32 [@evandotpro] Is our view of other galaxies outdated?

• 12:56 [@Mark-Mattison] How does cosmological redshift work?

• 13:54 [@prugrade] Can they make it rain on Mars?