A kilonova formed by colliding neutron stars releases gamma ray bursts powerful enough to vaporize atmospheres within a ...

Some things we see in space appear to outpace light. Now we are learning to harness these bizarre optical illusions to ...

Gamma-ray bursts (GRBs) are the brightest explosions in the universe. In just a few seconds, they can outshine all the stars in their host galaxy combined, releasing more energy than our sun will emit ...

Could black holes help explain the origins of high-energy cosmic radiation? The universe is filled with many forms of ...

Astronomers from the University of Hawaii’s Institute for Astronomy have identified a new category of events that they found to be much more powerful than gamma-ray bursts, called extreme nuclear ...

Scientists may have finally uncovered the mystery behind ultra-high-energy cosmic rays — the most powerful particles known in ...

The universe is full of different types of radiation and particles that can be observed on Earth, including photons in the ...

Riccardo Giacconi Papers / Series 13: National Aeronautics and Space Administration (NASA), 1965, 1967-1981 / Box 60 ...

The most energetic cosmic neutrino, or "ghost particle," ever recorded may be the remnants of a nearby black hole explosion.

On the night of July 19, 1952, the 48-inch Oschin telescope at Palomar Observatory in California was taking one of its routine photographs of the night sky. It was part of the First Palomar Sky Survey ...

In a bizarre gamma-ray space explosion whose light reached Earth in 2023, a team led by astronomer Run-Chao Chen of Nanjing ...