Neil deGrasse Tyson

Deleted No

Hibernated Yes

Last Checked Nov. 25, 2019

Created

Thu Jan 17 19:47:01 +0000 2013

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223

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230

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Neil deGrasse Tyson @neiltyson

.@cmirand4: Why doesn't the speed of light have an uncertainty? // It's defined, not measured. See: http://t.co/OaAHw1Gc — PolitiTweet.org

Posted Jan. 17, 2013 Hibernated

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Neil deGrasse Tyson @neiltyson

Enter a small room. Doors close. When doors open, you're in a different place. Elevators are the next best thing to wormholes — PolitiTweet.org

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Neil deGrasse Tyson @neiltyson

.@boonamobile What's the Sun-Earth light travel time? // Sun's core to its surface: a half-million years. After that: 500 sec — PolitiTweet.org