WHAT CAN BE DONE ABOUT SPACE DEBRIS? COLLISIONS IN ORBIT POSE A SERIOUS THREAT TO SATELLITES AND SPACECRAFT. BUT EVEN IF THEY CAN BE PREDICTED, IT COULD BE IMPOSSIBLE TO PREVENT THEM. David Finkleman ■ FEATURE ARTICLE On February 10, 2009, two communications satellites— Cosmos 2251 and Iridium 33—collided catastrophically in Earth orbit, 789 kilometers above northern Siberia. The event … read more »
