Starships on Mars, Molten Salt Moon Batteries, Observable Universe | Q&A 347

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Why do people believe Starships will go to Mars? Can we use molten salt batteries on the Moon? What's the difference between the Universe and the Observable Universe? And in Q&A+, what's the chance of hitting an stone during an interstellar voyage?

00:00 Start
00:25 [Dean T] Why people believe that Starships will land on Mars?
05:01 [Michael Stanley] What is does "observable Universe" mean?
06:46 [Dixie Q] When will we be able to see into the Oort cloud?
07:39 [puffcrusader696] How big can a telescope mirror get?
09:31 [kLONDIKE69 NONE] Can we use molten salt batteries on the Moon?
10:12 [Andrea Lencione] Which classic scifi author was best at predicted the future?

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