HomeSpace NewsColliding black holes could clock universe's expansion rate

Colliding black holes could clock universe’s expansion rate

Scientists may have found a way of using the collisions of black holes to measure the rate at which the universe is expanding and solve some of the mysteries surrounding dark energy, the mysterious force that drives accelerated cosmic expansion.

The violent mergers of black holes launch ripples in spacetime called gravitational waves, and the new technique measures changes in these signals that occur as they experience the universe’s expansion firsthand.

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