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Gamma Ray Bursts

Navy Researchers Put Dark Lightning to the SWORD

June 13, 2013

Want to stay on top of all the space news? Follow @universetoday on Twitter Discovered “by accident” by NASA’s Fermi Gamma-ray Space Telescope in 2010, dark lightning is a surprisingly powerful — yet invisible — by-product of thunderstorms in Earth’s atmosphere. Like regular lightning, dark lightning is the result of a natural process of charged [...]

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How Much Light Has The Universe Created Since the Big Bang?

May 27, 2013

The universe, most cosmologists tell us, began with a bang. At some point, the lights turned on. How much light has the universe produced since it was born, 13.8 billion years ago? It seems a difficult answer at first glance. Turn on a light bulb, turn it off and the photons appear to vanish. In [...]

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Amateur Astronomer Catches Record Setting Gamma-Ray Burst

May 8, 2013

Vigilance and a little luck paid off recently for an amateur astronomer. On April 27th, 2013 a long lasting gamma-ray burst was recorded in the northeastern section of the constellation Leo. Remove this ad

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Bright, Long-Lasting GRB Sets Energy Output Record

May 3, 2013

Last weekend (April 27, 2013), the Fermi and Swift spacecraft witnessed a “shockingly” bright burst of gamma rays from a dying star. Named GRB 130427A, it produced one of the longest lasting and brightest GRBs ever detected. Because Swift was able to rapidly determine the GRB’s position in the sky, and also because of the [...]

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New Kind of Gamma Ray Burst is Ultra Long-Lasting

April 16, 2013

According to astronomer Andrew Levan, there’s an old adage in studying gamma ray bursts: “When you’ve seen one gamma ray burst, you’ve seen … only one gamma ray burst. They aren’t all the same,” he said during a press briefing on April 16 discussing the discovery of a very different kind of GRB – a [...]

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