Tuesday, January 17, 2012

We Are The 4%

Eighty five percent all the gravity in the universe comes from something about which we know nothing. ...
[Add that to dark energy and] it is ninety six percent of the universe. Everything we know and love--electrons, protons, neutrons, light, black holes, planets, stars, everything we know and understand--occupies four percent of the universe. Dark matter and dark energy is everything else.
          Neil deGrasse Tyson

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