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The largest black hole collision ever recorded has scientists' jaws on the floor — and scratching their heads.
Two colossal black holes among the most massive ever seen collided in deep space, creating gravitational waves that rippled ...
L ast month, work began on the world’s first space-based gravitational wave detector. The European Space Agency and partner ...
The LIGO Hanford Observatory near the Tri-Cities and its twin in Louisiana detected ripples of time and space passing through ...