An investigation of a cosmic explosion that marked the violent death of a massive star has called into question our ...

Astronomers observed the fading light of supernova SN 2025kg, which followed the fast X-ray transient (FXT) named EP 250108a.

Supernovae usually appear suddenly in the sky, but now astronomers have spotted one in advance. The telltale sign is a star with a “teardrop” shape, as it gets stretched out by the gravitational pull ...

Betelgeuse, 650 light years away, may be nearing the end of its fuel, meaning its supernova could light Earth’s skies as ...