In 1739, Persian ruler Nadir Shah invaded Delhi, defeated the Mughal army, and carried out a brutal sack of the city. Among ...

The blast may have been a kilonova — a type of neutron star merger — in the wake of a more traditional supernova.

"This was many times more energetic than any similar event and more than any known explosion powered by the collapse of a ...

Scientists have discovered an enormous stream of super-hot gas erupting from a nearby galaxy, driven by a powerful black hole ...