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#137 – Alex Filippenko: Supernovae, Dark Energy, Aliens & the Expanding Universe
Lex Fridman Podcast
Observations and Experiments Working Together With Hypotheses
It wasn't until Galileo's work around 1610 that actual evidence for the heliocentric hypothesis emerged. It came in the form of Venus, the planet Venus going through all of the possible phases from new to crescent to quarter to gibbous and then full. And even though Jupiter moves through space, so to do the moons go with it. So first of all, Earth is not the only thing that has other things going around it. And secondly, Earth could be moving as Jupiter does. We wouldn't fly off the surface and our moon would move with it.
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