They occur when magnetic field lines in the sun's atmosphere tangle and snap, releasing large amounts of excess energy, including powerful X-rays and ultraviolet ... for the blast is located ...

(Gamma rays are on the same radiation ... "It's like pointing a telescope at the sun," Cendes explained. "It saturated the detectors." The blast "ranks among the most luminous events known ...

While sunsets on Mars are uniquely moody, NASA 's Curiosity rover has captured a stunning image of a martian sunset, featuring light rays that illuminated a bank of clouds as the sun set over the ...