January 7, 2014

Astronomical Oddity Will Test Einstein Again

Ken Croswell, Physics World


AP Photo

Astronomers have discovered the first pulsar with two stars circling it. By watching the three objects orbit one another, observers will soon be able to perform the best-ever test of the "strong equivalence principle", which is a key prediction of Albert Einstein's general theory of relativity.

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TAGGED: General Relativity, White Dwarf Stars, Gravity, Nordtvedt Effect, Pulsars

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