It lasted a thousand times longer than the average gamma-ray burst. On July 2, 2025, the NASA Fermi Gamma-ray Space Telescope picked up an event that would shake decades of astrophysical knowledge.

For the first time, astronomers using NASA’s Fermi Gamma-ray Space Telescope have traced a budding outflow of gas from a cluster of young stars in our galaxy — insights that help us understand how the ...

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NASA’s Fermi Gamma-ray Space Telescope "detected none of the high-energy gamma-ray light" from a nearby supernova. NASA explains. Credit: NASA Goddard Space Flight Center Donald Trump reacts to Joe ...

Here’s what you’ll learn when you read this story: For nearly a century, scientists have been searching for direct evidence of dark matter—one of the key missing pieces of our theoretical ...

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A team of astronomers have observed an explosion in the universe unlike any ever witnessed before. The gamma-ray bursts from outside the Milky Way galaxy repeated several times over the course of a ...

GRB 250702B was spotted in July. ESO / A. Levan, A. Martin-Carrillo et al. Astronomers have spotted a gamma-ray explosion unlike any they’ve seen before, with the help of multiple telescopes, ...