Space junk.

• Position: Junk satellites, rocket parts - Brief article

Dead satellites, rocket stages, cameras, hand tools--those are just a few examples of space junk. Early this year, the number of "observable objects" [four inches wide or larger) orbiting the Earth reached 10,000. On January 11, China added to the clutter when it tested an anti-satellite rocket, which blew an old satellite into hundreds of fragments. As the debris increases, so does the danger to spacecraft...