I'm a big fan of cool coincidences, especially of the astronomical kind. And this one is simply too funny.

On February 14, 2000 - yes, on Valentine's Day! - the space mission called Near-Earth Asteroid Rendezvous (or NEAR) entered into orbit around the asteroid named 433 Eros. This spud-shaped rock is 34 x 11 x 11 km (21 x 7 x 7 miles) in size, and sometimes approaches near the Earth (though we are in no danger from it for a long, long time, like millions of years).

As NEAR approached Eros, it snapped this shot of a feature at one end (I inset a zoomed-in picture on the lower right). It's actually three separate craters, lit by the Sun in just such a way as to resemble... well, you know.

And while it's a funny coincidence that NEAR went into orbit on Valentine's Day, it may be an even better one that Eros itself is named after the Greek god of love. Well, um, physical love, but you get the meaning.

Higher res version.
Original release.

Image credit: NEAR Project (JHU/APL)