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Published: Nov. 9, 2021, midnight

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In this week\'s questions show, I answer if you could have a planet made entirely of water, is it our duty to spread life in the Universe? Could Planet 9 be a brown dwarf? And more...

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00:00 Start
\\n01:35 Could you have a planet made only of water?
\\n04:23 Is it our duty to spread life into the Universe?
\\n07:43 Could a civilization harvest energy from tidal flexing?
\\n10:01 Where could you survive without a spacesuit?
\\n12:18 How do space stations get decommissioned?
\\n14:41 Could Planet 9 be a brown dwarf?
\\n15:42 Will climate change impact space exploration?
\\n18:47 Would mold outside the space station be alien?
\\n20:22 Do other star systems have kuiper belts and oort clouds?
\\n22:06 Does the Milky Way have an escape velocity?
\\n24:14 Should Earth be kept as a nature preserve?

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Want to be part of the questions show? Ask a short question on any video on my channel. I gather a bunch up each week and answer them here.

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\\U0001f680 OUR WEBSITE:
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Astronomy Cast: Award-winning, long-running deep dive into space and astronomy with Fraser and Dr. Pamela Gay.
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