The merger wasn’t just the biggest ever, but also an event so rare that it challenges existing models for black hole genesis.

A collision observed between two black holes, each more massive than a hundred suns, is the largest merger of its kind ever recorded, according to new research. Gravitational waves were predicted by ...

The best time to view the Perseids is between midnight and dawn, according to Hankey. However, one of the the best days to ...