Houston, We Have a (Potty) Problem

The three-member crew aboard the International Space Station has a delicate problem—the toilet's on the fritz. The station's liquid-waste collector—a tricky system involving fans and the lack of gravity—is kaput, the New York Times reports. (The solid-waste collector still works.) Astronauts are working on a backup system and may get plumbing help when Discovery (with a crew of seven and its own toilet) launches Saturday. (More NASA stories.)