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[Q&A] Auroras in the South, Restarting Planets' Dynamos, Old People on Mars

How can we possibly know everything about exoplanets from just a single pixel? Will Mars be a good place for old people? Where does more emptiness come from if the Universe is expanding? Can we ever get to explore Betelgeuse? Answers to all these questions and more in this week's Q&A!🦄 Support us on Patreon: https://patreon.com/universetoday00:00 Start01:43 [Tatooine] How do we know so much about exoplanets from single pixel images? 11:43 [Coruscant] Side windows on Mars greenhouses?13:09 [Hoth] Is low gravity good for old people?14:31 [Naboo] How can a planet's dynamo restart after…

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