PBS NewsHour

The sound of black holes colliding proves Einstein was right

Clip: 02/11/2016 | 5m 25s

Gravitational waves -- ripples in the fabric of spacetime -- aren’t just an Einstein theory any more. A team of international scientists announced Thursday that they confirmed the waves’ existence after recording feedback from a black hole collision a billion light-years from Earth. Hari Sreenivasan learns more from Dave Reitze of the California Institute of Technology.

Aired: 02/11/16

Rating: NR

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