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.

Supernovas, kilonovas, gamma-ray bursts... oh my! The Nancy Grace Roman Space Telescope will uncover 100,000 of these ...

Roman’s deep, time-lapse survey may reveal a hundred thousand stellar cataclysms, from distant Type Ia supernovae to the self ...