The LIGO Scientific Collaboration and the Virgo Collaboration report the first joint detection of gravitational waves, ripples in the fabric of space and time, first predicted by Albert Einstein more than a century ago. This is the fourth announced detection of a signal from two black holes in their final orbits and then their coalescence into a single black hole. A paper about the event, GW170814, will be published in the journal Physical Review Letters.

Any other questions? ;-) To read more, click here.