Observers caught these stars going supernova

Massive stellar explosions created these luminous, expanding shells of gas and dust

illustration of supernova 1987A

STELLAR SHREDS Thirty years ago, astronomers witnessed a nearby stellar explosion (illustrated above), but it wasn’t the first. Humanity has been recording local supernovas for nearly two millennia.

ALMA (ESO, NAOJ, NRAO), Alexandra Angelich (NRAO, AUI, NSF)

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