Slashdot linked up notice that the Saturn probe Cassini has detected a really strange feature on that planet's moon, Iapetus. It appears that a gigantic ridge bisects the planet, exactly at its equator, with an average height approaching 12 miles. The article isn't clear if the ridge itself goes all the way around the planet, or if it's just found on the "dark" side. Oh, yeah, this is also the moon that has one side that's as black as tar, and another that's as white as snow. I'd ask "could it get any weirder?", but I think I already know the answer to that one.