Space.com on MSNOpinion
Most normal matter in the universe isn't found in planets, stars or galaxies – an astronomer explains where it's distributed
But the Big Bang theory predicts that about 5% of the universe's contents should be atoms made of protons, neutrons and ...
Chris Impey has received funding from NASA, NSF, Howard Hughes Medical Institute, and the Templeton Foundation. If you look across space with a telescope, you’ll see countless galaxies, most of which ...
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