Dark matter and black holes are teaming up to produce giant "burps" of…

We just snapped our best photo yet of dark matter, but we still don't know just what it is. Now we might have a way to (literally) shed some light on dark matter...with an assist from super-massive black holes. » 8/29/10 4:18pm 8/29/10 4:18pm

Gamma Rays of the Dead Shine Like a Nightmare into the Eyes of the…

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… » 8/28/08 4:30pm 8/28/08 4:30pm