Astronomers from the Chinese Academy of Sciences (CAS) have employed the Lijiang 2.4-m telescope to perform optical photometric and spectroscopic observations of a core-collapse Type IIP supernova ...

Core-collapse supernovae denote the violent deaths of massive stars, typically above eight solar masses, triggered when iron core fusion ceases and collapse ensues. The rebound of infalling layers, ...

Once charted as a 'guest star' in ancient China, dreaded as a harbinger of ill omens in medieval Europe, and preserved in the narratives and artworks of Indigenous cultures, these cosmic spectacles ...

When a star in the nearby galaxy NGC 2146 exploded in late 2024, it barely registered by supernova standards. The blast, cataloged as SN 2024abfl, was roughly 100 times fainter than a typical stellar ...

A massive star does not always go out in a brilliant supernova. Some instead collapse into black holes, potentially with little or no visible explosion. What determines which path a dying star takes ...

Editor’s note: This article was originally published Aug. 13, 2025, and has been updated to include new text and illustrations featured in the January 2026 issue of Astronomy. Using an artificial ...

In addition to revealing characteristics of mysterious particles called neutrinos, the massive DUNE experiment could help astronomers find a supernova right as it begins. At this very moment, ...

This graphic features data from NASA's Chandra X-ray Observatory of the Cassiopeia A (Cas A) supernova remnant, a frequent target of the telescope for more than a quarter century. The latest Chandra ...

A new JCAP paper promises to reveal supernovae only hours after they explode Supernovae are enormous explosions that mark the final stages of a star’s life. They fall into two broad categories, ...