X Marks the Spot Where Black Holes Meet
An anonymous reader writes "Scientific America has an article describing how the X shape observed at the center of some galaxies may be explained by the merging of massive black holes at the center of colliding galaxies."
It's the folks at Apple plugging OS X a la the Folks at Disney plugging "Signs".
But personally, I like to think the universe is running X windows, and these galaxies are simply screen-savers.