Stars once thought to provide evidence of hypernovae may instead owe their unusual chemistry to ordinary supernovae that ...

・A rare X-ray flash captured the first light from SN 2026gzf, an energetic supernova that produced no detected gamma-ray burst. ・The dying star had shed its hydrogen and helium, building shells of ...

Is SN 2021yfj a new type of supernova defined by a powerful new process that stripped it of its outer layers? Some of the explanations the team is considering are interactions with a companion star, ...