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Dark Lightning Images: NASA's Fermi Telescope Captures Powerful Gamma-Ray Flashes

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Fermi Telescope

Credit: NASA/Jim Grossmann
Gamma rays are the brightest, most powerful, explosions in the universe, often emitted from supernova or supermassive black holes. But these giant flashes…Read More »









can also have Earthly origins, stemming from intense storms — these are called terrestrial gamma-ray flashes. NASA's Fermi Gamma-ray Space Telescope (shown here in a May 2008 image), which launched in June 2008, can detect both types of gamma rays. The telescope can see the terrestrial type up to a distance of about 500 miles (800 kilometers).    Less «
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Jeanna Bryner, LiveScience Managing Editor

Jeanna Bryner

Before becoming managing editor, Jeanna served as a reporter for Live Science and SPACE.com for about three years. Previously she was an assistant editor at Scholastic's Science World magazine. Jeanna has an English degree from Salisbury University, a Master's degree in biogeochemistry and environmental sciences from the University of Maryland, and a science journalism degree from New York University.
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