China Asat Test Called Worst Single Debris Event Ever Feb 11, 2007 By Frank Morring, Jr. Chinese delegates will have some explaining to do in Vienna later this month, when they sit down with representatives of other spacefaring nations to adopt international guidelines designed to mitigate the growing problem of man-made space debris in Earth orbit. The document drafted by a technical subcommittee of the U.N. Committee on the Peaceful Uses of Outer Space is aimed at preventing the sort of accidental events that have gradually engulfed Earth in a cloud of potentially destructive high-speed debris since the flight of...