NASA: Holiday asteroid looks like a hippopotamus
Asteroids aren't always the most elegant-looking objects in the cosmos. New NASA radar images of asteroid 2003 SD220 show a rock that resembles a space slug, or that creepy Ceti eel ear-bug thing from Star Trek II: The Wrath of Khan. Or even a hippo. The asteroid is considered a near-Earth object, but it'll zoom past us at a safe distance of 1.8 million miles (2.9 million kilometers) on Saturday. This is 2003 SD220's closest approach to our planet in 400 years, though it will slide by slightly closer in 2070.