Experiment proves, once again, Einstein was right about gravity

04/28/2013 | Wall Street Journal, The

Astrophysicists at the Max Planck Institute for Radioastronomy in Germany have used an extreme experiment that has proven Albert Einstein's theory of gravity right -- again. Observing a white dwarf and a pulsar with 300 billion times more gravity than on Earth 7,000 light years away, scientists confirmed Einstein's theory that their orbital periods should shrink every year.

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