An international team of scientists, including astronomers from the Universities of Leicester, Bath and Warwick, have found evidence for the existence of a ‘hot cocoon’ of material enveloping a ...

A mysterious, ultrafast cloud may be the result of the explosive stellar death that birthed a neutron star 100,000 years ago and around 532 light-years away, new research reveals. High-velocity clouds ...

Supernovae produce some of the most powerful explosions in the cosmos, expelling a doomed star’s contents at velocities reaching 10 percent the speed of light. It usually takes a few weeks or months ...

A long-dead star is still producing a spectacular supernova, and the blast is moving at incredible speeds. Some areas of the supernova blast are moving at speeds of up to 23 million miles per hour.

A mysterious remnant from a rare type of supernova recorded in 1181 has been explained for the first time. Two white dwarf stars collided, creating a temporary 'guest star,' now labeled supernova (SN) ...

A supernova explosion flung out a super-dense, whirling stellar core, sending it streaking across space at almost 2.5 million mph (4 million km/h) with a glowing trail 13 light-years long in its wake.