This computer generated graphic provided by NASA shows images of objects in Earth orbit that are currently being tracked. Space junk has made such a mess of Earth's orbit that experts say we may need to finally think about cleaning it up. That may mean vacuuming up debris with weird space technology _ cosmic versions of nets, magnets and giant umbrellas, according to the chairman of an expert panel that issued a new report on the problem Thursday. (AP Photo/NASA)

Associated Press
This computer generated graphic provided by NASA shows images of objects in Earth orbit that are currently being tracked.  Space junk has made such a mess of Earth's orbit that experts say we may need to finally think about cleaning it up. That may mean vacuuming up debris with weird space technology _ cosmic versions of nets, magnets and giant umbrellas, according to the chairman of an expert panel that issued a new report on the problem Thursday. (AP Photo/NASA)
This computer generated graphic provided by NASA shows images of objects in Earth orbit that are currently being tracked. Space junk has made such a mess of Earth's orbit that experts say we may need to finally think about cleaning it up. That may mean vacuuming up debris with weird space technology _ cosmic versions of nets, magnets and giant umbrellas, according to the chairman of an expert panel that issued a new report on the problem Thursday. (AP Photo/NASA)
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