Can a giant asteroid knock the Moon from its orbit? How good does a telescope need to be to see the Oort cloud? What are the odds of a rogue planet hiding nearby in our Solar system? And in our extended Q&A+ version, can we be sure that we're alone in the Universe? Answering all these questions and more in this Q&A show.

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• 00:00 Start

• 00:30 [angus campbell] Could a giant meteor knock the Moon out of orbit?

• 02:19 [Liam Dobbyn] Could dark matter be just failed stars with planets?

• 04:04 [Annie Alexander] How powerful would a telescope have to be to be able to see the Oort cloud?

• 05:17 [Clint Davis] Can we artificially rotate a tidally locked planet?

• 06:17 [your average terraria player] Why does breaking light speed cause paradoxes?

• 07:47 [Correctimus] How likely is it that a rogue planet is in the Oort cloud right now?

• 09:32 [Snelwegkoek] The coolest object I've seen in a telescope

• 12:37 [Sid Remey] How to through things down from the ISS?

📺 VIDEO VERSION

https://youtu.be/r8lcoL2Fy-I

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