Was That Just a Gamma Ray Burst in Andromeda?! (Updated: No, but still cool.)

The Swift Gamma-Ray Burst Mission just saw something bright in the Andromeda Galaxy. It was either a Gamma-Ray Burst or an Ultraluminous X-Ray Object, but either way it will be the closest event we've ever observed. ...unless it's just a known X-ray object, a programming bug, and a thunderstorm.. » 5/27/14 5:23pm 5/27/14 5:23pm

NASA Captures New Photo of Potential "Comet of the Century"

In November of this year, a comet by the name of ISON will graze past the Sun. Its close encounter has the potential to ignite the comet in such a way that it could be visible from Earth in the middle of the day, and even outshine the Moon at night. Astronomers say it is a potential "comet of the century." And this,… » 3/31/13 10:30am 3/31/13 10:30am