Explosion of US Military Satellite May Endanger Spacecraft After All

The February explosion of an American military satellite may cause some problems for orbiting spacecraft after all, a new study reports. The U.S. Air Force's 20-year-old Defense Meteorological Satellite Program Flight 13 (DMSP-F13) craft blew apart on Feb. 3 after experiencing a power-system faillure. Analyses by the European Space Agency and other organizations found that the cloud of space junk generated by the explosion shouldn't pose much of a threat to their missions, but the new research suggests that not all spacecraft are in the clear. Study leader Francesca Letizia, a graduate student at the University of Southampton in England, and her team spotted 100 new chunks of debris produced by DMSP-F13's violent end. This number suggests that the explosion also created more than 50,000 pieces smaller than 1 millimeter in diameter, the scientists said. "Even though many of these objects will be More

(Source: Space.com - May 9)