Space junk mess getting messier in orbit

The already untidy mass of orbital debris that litters low Earth orbit nearly got nastier last month. A head-on collision was averted between a spent upper stage from a Chinese rocket and the European Space Agency's huge Envisat Earth remote-sensing spacecraft. Space junk tracking information supplied by the U.S. military, as well as confirming German radar data, showed that the two space objects would speed by each other at a nail-biting distance of roughly 160 feet (50 meters). More

(Source: MSNBC - Feb 24)