Gravitational waves: What's the big deal?

February 12, 2016 1:28 AM

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A century after Albert Einstein first suggested the existence of gravitational waves, the world of physics and astronomy was rocked Thursday when scientists announced they finally detected gravitational waves.

Last September, an international team of astrophysicists used an exquisitely sensitive, $1.1 billion set of twin instruments known as the Laser Interferometer Gravitational-wave Observatory, or LIGO, to detect a gravitational wave generated by the collision of two black holes 1.3 billion light-years...

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