Living on Venus VS Mars, Biosphere 2 for Mars, Dangers of Space Junk | Q&A 346

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Is living in the clouds of Venus better than living in sub-surface habitats on Mars? Can we really lock ourselves from orbit with space junk? Should we build another version of Biosphere before going to Mars? And in Q&A+, is abiogenesis really unlikely?

00:00 Start
00:29 [Mr Kyle] How do we distinguish the motions of galaxies and the expansion of the Universe?
02:14 [Melinda Green] Biosphere 2 before going to Mars?
03:38 [Adam Redwine] Are there any plans for Biosphere 3?
05:43 [A.SmollZz] Can we really trap ourselves on orbit because of space junk?
07:50 [Nick Stokes] What kind of space mission would I get on?
09:21 [name] Floating habitat on Venus VS sub-surface habitat on Mars
10:11 [Kyle] Hostile aliens
11:25 [Ken Sole] Rarest phenomena in our universe

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