Building gamma-ray lasers powered by an exotic hybrid of matter and antimatter may sound like science fiction, but scientists are now a step closer to doing it. Whereas the wavelengths of traditional ...

A tremendous cosmic explosion 2.4 billion light years away temporarily changed the electric field in Earth’s ionosphere (the electrically-charged upper layer of our atmosphere that helps shield life ...

For countless years, humans have gazed up at the sky and made sense of the stars by finding shapes in them — constellations of heroes, animals, and well-worn tales. Now, to celebrate the 10th mission ...

New research has failed to rule out self-annihilating dark matter as the source of a gamma-ray emission radiating from the ...

Astronomers have spotted a bright blast of high-energy light that may be the most powerful cosmic explosion ever detected. The high-energy emission known as a gamma-ray burst (GRB) – the most powerful ...

When faraway stars explode, they send out flashes of energy called gamma-ray bursts that are bright enough that telescopes back on Earth can detect them. Studying these pulses, which can also come ...

A new generation of gamma-ray detector known as AstroPix will fly aboard the agency’s Fly Foundational Robots mission, ...

In October 2022, astronomers were stunned by what was quickly dubbed the BOAT -- the brightest-of-all-time gamma-ray burst (GRB). Now an international science team reports that data from NASA's Fermi ...

Gamma-rays — the brightest, most powerful light in the universe — sail across the sky invisible to human eyes. These exceptionally energetic bursts of radiation flash out of supernova explosions, ...

Gamma-ray bursts, the most violent cosmic explosions, are the birth announcements for black holes. Several new reports support this increasingly popular notion, but they disagree on how and when the ...

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