When a massive star collapses or two neutron stars collide billions of light-years away, the explosion can unleash a brief, ...

Gamma-ray bursts (GRBs) rank among the most powerful explosions in the universe, releasing immense energy in intense flashes ...

A dark matter signal that appears in one place but not another might look like a contradiction. This new study argues it may ...

Dark matter may consist of two particles, explaining why only the Milky Way shows a strange gamma-ray signal while smaller ...

GRB 250702B is 'the longest gamma-ray burst that astronomers have ever observed,' according to NOIRLab. See imagery of the ...

A new study suggests that failing to detect dark matter signals in some galaxies may not contradict evidence seen in our own.

A mysterious glow of gamma rays at the center of the Milky Way has long hinted at dark matter, but the lack of similar ...

Astronomers have finally identified the source of unusual X-rays from the bright star gamma-Cas, resolving a decades-long mystery.

Astronomers have spotted a bizarre cosmic explosion that refuses to play by the rules—and it’s leaving scientists scrambling for answers. GRB 250702B, detected by NASA’s James Webb Space Telescope and ...

The absence of a signal could itself be a signal. This is the idea behind a new study published in the Journal of Cosmology ...

Scientists have developed a flexible shield that blocks up to 175% more gamma radiation, offering lightweight, advanced protection ...

For over a century, the star named Gamma-Cassiopeiae (or "Gamma-Cas") has puzzled astronomers. Visible to the naked eye in ...