Gamma rays are the shortest wavelength electromagnetic ... which protects us against dangerous ultraviolet radiation from the sun. Mass extinctions in Earth’s history may have been caused ...

Was a powerful cosmic explosion seen by the Einstein Probe launched by a supermassive black hole snacking on a star, by a ...

WEST LAFAYETTE, Ind. -- An international team of astronomers has observed extremely rapid bursts of high-energy gamma rays from a distant galaxy, an observation that is challenging how astronomers ...

"The gamma-ray burst traveled through intergalactic space at the speed of light for eleven billion years, during which time the Sun and the planets were born." — Timothy Ferris, in the film ...

Gamma-ray bursts (GRBs) Gamma-ray bursts (GRBs ... While GRBs hitting Earth is only a hypothesis, it could be dangerous to the atmosphere and damage the ozone layer, making life vulnerable ...

Highly energetic explosions in the sky are commonly attributed to gamma-ray bursts. We now understand that these bursts ...

Volcanic ash, often seen as a dangerous waste after eruptions, may have a surprising new purpose—shielding people from ...

The highly energetic explosion was initially attributed to a burst of gamma rays emitted either by the collision of two neutron stars or from the death of a massive star. Soon, however ...