Neil deGrasse Tyson

@neiltyson ↗

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Last Checked Aug. 31, 2019

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Mon Mar 25 16:06:24 +0000 2019

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Neil deGrasse Tyson @neiltyson

@napendergraph All depends on how fast you rotate. All slow-rotating galaxies, especially in galaxy clusters, are round. And the huge Oort Cloud [Google it] of comets, surrounding the Sun and planets, is spherical. — PolitiTweet.org

Posted March 25, 2019

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Neil deGrasse Tyson @neiltyson

“On Being Round” — Chap. 8 of **Astrophysics for People in A Hurry** discusses how the laws of physics conspire across the cosmos to prefer spheres. If you think Earth is flat you’ve never read this chapter or you have yet to establish a relationship with objective reality. https://t.co/PQGnS5WMBZ — PolitiTweet.org

Posted March 25, 2019

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Neil deGrasse Tyson @neiltyson

@T32504 Orbiting objects orbit each other. For example, the Moon does not orbit Earth’s center, Earth & Moon orbit a common center-of-mass — a spot about 1,000 miles beneath Earth’s surface along a line that connects our centers. So Earth's jiggle is basically an orbit “around” the Moon. — PolitiTweet.org

Posted March 25, 2019