Scientists have discovered a whole cluster of galaxies colliding with each other. Unlike the previously discovered (and aptly named) bullet cluster, whose collision we see from the side, this cluster faces us with the collision oriented head-on. Having two different views of the same spectacularly humongous type of event will of course provide important insights into just how these things happen. And make me want to go have a lie down.

In other news, "humongous" is actually in Firefox's spell check dictionary. Ask me how I know!