For the first time, scientists have made a clear X-ray detection of chlorine and potassium in the wreckage of a star using ...

Why are the jets emitted by black holes or neutron stars always concentrated like a laser? Craig CaseTwain Harte, California ...

Astronomers from Texas have witnessed the moment a star’s surface is torn apart by a supernova, becoming oblong in the ...

Rare cosmic explosions have earned an international award for an astrophysics collaboration led by an Oxford professor.

The Cassiopeia A supernova remnant reveals that massive exploding stars can forge far more of life's essential ingredients ...

A small star named M82 X-2 breaks physical barriers, as NASA's NuSTAR confirms it shines 10 million times brighter than the ...

The beginning of winter is a great time to be taking up astronomy, with long dark nights and a multitude of bright stars on ...

When a distant galaxy briefly outshines everything around it in high-energy light, astronomers usually know which playbook to reach for. Gamma-ray bursts tend to fall into familiar categories, either ...

The explosive death of a star — a supernova — is among the most violent cosmic events, but precisely how this cataclysm looks ...

Neutron stars are ultra-dense star remnants made up primarily of nucleons (i.e., protons and neutrons). Over the course of ...

Some of the elements used by living systems are far more abundant in Cassiopeia A than we thought, hinting that some parts of our galaxy might be more suitable for life than others ...

The logic behind the researchers’ approach was straightforward. If scalar particles interact strongly with nucleons, neutron ...