Astronomers are familiar with seeing amazing things through their telescopes. But nothing prepared them for an incredible explosion detected early Wednesday morning by NASA?€™s Swift satellite. At 2:12 a.m. EDT, Swift detected an explosion from deep space that was so powerful that its afterglow was briefly visible to the naked eye. Even more astonishing, the explosion itself took place halfway across the visible universe!
read more at: http://www.nasa.gov/mission_pages/swift/bursts/brightest_grb.html