Trackers of Orbiting Junk Sound Warning

Space is a mess. There are 19,000 pieces of debris larger than a softball orbiting the Earth. They travel at about 17,000 miles per hour, fast enough for a relatively small piece of junk to destroy a satellite or even the space shuttle. There are 300,000 pieces of debris the size of a marble or larger, according to Paul Graziani, chief executive of Analytical Graphics, Exton, Pa., a maker of software for the space and defense industries. More

(Source: Defense News - Jun 11)