In which John
Green, Hank Green,
and Emily Graslie
teach you about
what happened in
the Universe after
the big bang.
They'll teach
you about cosm
(
more)
In which John Green, Hank Green, and Emily Graslie teach you about what happened in the Universe after the big bang. They'll teach you about cosmic background radiation, how a bunch of hydrogen and helium turned into stars, formed galaxies, created heavy elements, and eventually created planets.
For more information, visit
http://www.bighistoryproject.c...Originally collected by
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