Gravitational Waves From Black Holes Are Detected for Third Time
The ripples in spacetime reached Earth from a cosmic collision about 3 billion light-years away.
by Marina Koren
Jun 01, 2017
3 minutes
Scientists have detected for the third time gravitational waves coming from the merging of two massive black holes somewhere in the universe, the wrinkles in the fabric of space and time created by a powerful cosmic collision.
About 3-billion light-years away from Earth, the two black holes, far more massive than our sun, whirled around each other and eventually collided, generating waves like ripples in a pond. The waves spread out into the universe, expanding and contracting spacetime as they went. They reached
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