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San Francisco, 5:45 PM
Wed Dec 30
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Mega-Explosion Creates Biggest Burst of Gamma Radiation Ever Detected
It's a good day for space discoveries. A Martian windstorm just cleaned Mars rover Spirit's solar panels, and those of us back on Earth got to enjoy the best gamma ray burst ever. More »Gamma Rays of the Dead Shine Like a Nightmare into the Eyes of the Living
When you look into the heart of the Crab Nebula, you are staring at the gamma-radiation-soaked nightmare of history. You may have already known that this gorgeous nebula is the result of a supernova that Chinese and Arab astronomers recorded back in 1054. But what you didn't know is that the dead star became a pulsar that's still pouring ultrahot, oscillating gamma radiation out into the cosmos. Researchers in the U.K. are investigating this gamma-spewing pulsar, and Clara Moskowitz has the story at Space.com. Image credit: NASA/ESA and Jeff Hester (Arizona State University).