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Keeping Space Free of Trash
Media Release
Aug. 19, 2006
You can find it orbiting Earth, floating in space, or sitting on Venus, Mars, and the moon. No, it's not a spaceship—it's space trash!
Space trash, often called space debris (duh-BREE), is any man-made object that no longer serves a useful purpose.
More than 4,000 satellites have been launched into space since 1957. All that activity has led to large amounts of space trash.
Nicholas Johnson, a chief NASA scientist and program manager for orbital debris, monitors more than 13,000 objects that are at least three to four inches (seven to ten centimeters) wide. Of those objects, only 600 to 700 are still in use.
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Website: http://news.nationalgeographic.com/kids/2004/02/spacetrash.html
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