NASA is celebrating the holiday season with photographs of the remnants of a supernova star captured by the James Webb Space Telescope. The star, named Cassiopeia A (Cas A), shines brightly from ...

Stars like the Sun are remarkably constant. They vary in brightness by only 0.1% over years and decades, thanks to the fusion of hydrogen into helium that powers them. This process will keep the Sun ...

Earth was showered by radioactive debris from supernovae - exploding stars - as recently as 1.7 million years ago, research has shown. A series of stellar blasts are thought to have occurred around ...

Earth may owe some of its properties to a nearby star that blew up just as the solar system was forming. This pattern, which saw a supernova bubble envelop the sun and shower it with cosmic rays, may ...

Astronomers are eagerly anticipating the sight of an exploding star, T Corona Borealis, which will be visible to the naked eye for the first time in 80 years. The phenomenon, also known as T Cor Bor, ...

The Kepler space telescope captured the first, brilliant flash of an exploding star’s shockwave - known as the ‘shock breakout’. The explosive death of this star, a red supergiant called KSN 2011d, ...