A stellar explosion that briefly outshone its entire host galaxy may have left behind a calling card no superluminous ...

NASA’s Fermi telescope may have finally uncovered the magnetic powerhouse behind the universe’s brightest supernovae.

NASA's Fermi Gamma-ray spacecraft has observed a super-bright, supercharged supernova explosion powered up by the creation of ...

Cosmic rays seen at Earth show a wide range of particle energies, from 107 electron-volts (eV) to more than 1020 eV, the ...

Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and Fundamental Forces from Imperial College London. Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and ...

This illustration depicts a collapsing star that is producing two short gamma-ray jets. Just before a massive, collapsing star explodes as a supernova, we often observe a gamma-ray burst (a brief ...

On Oct. 9, 2022, the orbiting Swift and Fermi gamma-ray detectors observed the brightest gamma-ray burst (GRB) ever seen: GRB 221009A. Astronomers around the world quickly responded by turning as many ...

A fizzled example of a gamma-ray burst, the most powerful kind of explosion known in the universe, suggests these outbursts may not always work the way that scientists thought, and that versions of ...

Gamma-ray bursts are the most powerful explosions ever detected in the Universe. They are also one of the greatest mysteries of modern astronomy, since so far no clear evidence has existed to prove ...

Evidence for a significant new class of supernova has been found with NASA’s Chandra X-ray Observatory and the European Space Agency’s XMM-Newton. These results strengthen the case for a population of ...

Scientists have discovered X-ray stripes in the remains of a supernova that may be the first direct evidence that these exploded stars can accelerate particles to energies a hundred times higher than ...