Murdered Galaxy Gets A Double-Halo Memorial

See that cool pattern around this edge-on spiral galaxy, NGC 5907? The one that sort of looks like two halos? Those are the only remains of another galaxy, which NGC 5907 slaughtered in cold blood. (Or maybe cold dark matter?) We've shown you galaxies colliding before, but here's an arresting look at the aftermath of… » 7/08/08 4:00pm 7/08/08 4:00pm