Neil deGrasse Tyson

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Last Checked May 18, 2019

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Wed Dec 21 19:19:44 +0000 2011

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Neil deGrasse Tyson @neiltyson

The best engineering flow chart ever: http://t.co/Rs7GNh4U — PolitiTweet.org

Posted Dec. 21, 2011 Hibernated

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Neil deGrasse Tyson @neiltyson

.@JDynes82 What % of Earth's history has life existed, you ask? After Earth cooled: 95%. Yup, humans are latter-day blips — PolitiTweet.org

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Neil deGrasse Tyson @neiltyson

Dec 21, 2011: Winter Solstice Eve. Another blustery 60 degree day in NYC. — PolitiTweet.org