Ask a NASA astronomer! Is there proof that the Earth is round? - Big Think
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Dr. Michelle Thaller is an astronomer who studies binary stars and the life cycles of stars. She is Assistant Director of Science Communication at NASA. She went to college at[…]

Hey flat Earthers, it’s time to put your theory to bed once and for all! A curious stargazer by the name of Oscar has submitted a question to Big Think’s ‘Ask an astronomer’ series with NASA’s Michelle Thaller. Oscar wants to know: “What would be the easiest proof that the Earth isn’t flat, that I could come back with whenever I get challenged on this issue?” Thaller sets the record straight. “There are so many proofs that the Earth is round, it’s difficult to know where to start. And it’s not okay to think that the Earth is flat; this is not a viable argument,” she says. The ancient Greeks figured out we were living on a sphere over 2,000 years ago, and there are things you can do to prove that the Earth is indeed round—just go to a body of water and look at ships or boats on the horizon with binoculars. Thaller explains three observable proofs that instantly debunk flat-Earth theory with irrefutable evidence of the Earth’s round, curvaceous, gloriously spherical shape. You can follow Michelle Thaller on Twitter at @mlthaller.



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