Western Space Agencies Are Tracking What Could Be A Russian Satellite Killer

The US military's space defense command, or NORAD, is tracking an orbiting object that analysts speculate might be designed to fix -- or attack -- other satellites. Governments keep tabs (and so can you) on what's floating in low orbit, which is why NORAD initially labeled the object as space debris. But in May, Russia's government told the United Nations that a launch made last Christmas Day had sent four satellites into orbit, instead of the trio that is typically set up in a single launch. Th...