EARTH ACCORDING TO ROCKS: An Earth Day “must-see” video [8min 30sec - watch to the very end] https://t.co/EwQ1MOLgMP
— Neil deGrasse Tyson (@neiltyson) April 22, 2016
via Twitter https://twitter.com/neiltyson
April 22, 2016 at 10:30PM
EARTH ACCORDING TO ROCKS: An Earth Day “must-see” video [8min 30sec - watch to the very end] https://t.co/EwQ1MOLgMP
— Neil deGrasse Tyson (@neiltyson) April 22, 2016
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