Supernovae, categorized as Type I (low hydrogen) and Type II (high hydrogen), produce varying abundances of heavy elements. Type Ia supernovae, resulting from thermal runaway in white dwarfs, are rich ...

It’s easy to forget that stars, just like us, have lifetimes. They’re born, they live, and eventually, they die. And for some stars, their death is dramatic, producing an explosion so powerful it can ...

Despite the massive number of stars in the sky, spotting one in the throes of a supernova is still an incredibly rare event. Now, astronomers have captured a red supergiant before, during and after a ...

Massive stars, those with initial masses exceeding eight times that of the Sun, undergo complex evolutionary processes that ultimately culminate in spectacular supernova explosions. During their ...

This article (originally published Aug. 13, 2025) has been updated to include new text and illustrations featured in the Jan.

A Type II supernova has been documented for the first time. This space achievement is a big deal since it can help astronauts and other experts to understand dying stars better. This NASA image shows ...

Researchers have made major strides in confirming the source of dust in early galaxies. Observations of two Type II supernovae, Supernova 2004et (SN 2004et) and Supernova 2017eaw (SN 2017eaw), have ...

The visible universe is a big place. Like, really, really big — some 93 billion lightyears across (via Futurism). To put that in perspective, that's like running 25 billion back-to-back marathons, and ...

In an unprecedented event, there are THREE active supernovae simultaneously seen exploding in a galaxy right now! While two supernovae seen at the same time in the same galaxy has happened before, to ...