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.

Astrophysicists have analyzed two merging black holes; the team's best models suggest that at least one, if not both, of the black holes shouldn't exist.

A short-lived ripple in space-time revealed that two black holes merged into a giant black hole with the mass of 225 suns