Neil deGrasse Tyson | ‘Mmmmmurica’s Eclipse, August 21, 2017 | RSAC 2017





In a total solar eclipse, the moon completely covers the sun. See how rockstar astrophyiscist and director of the Hayden Planetarium, Neil DeGrasse Tyson explains “‘Mmmmurica’s eclipse” happening on August 21, 2017 in his presentation at RSAC.

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