alvin alexander
Nodes for the term “galaxy”
First successful test of Einstein’s General Relativity Theory near supermassive black hole
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The center of the Milky Way has thousands of black holes
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Today’s news (December 21, 2017)
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Galaxies can (and do) move apart at faster than light speed
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If an alien in a galaxy 65 million light years away ...
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Scientists are reporting yet another burst of gravitational waves
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A 3 billion solar mass black hole rockets out of a galaxy
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Kepler confirms more than 100 planets in single trove
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