Metal Moons July 27, 2009

Born in a time of intense politcal intrigue, satellites have been circling the earth since the late 1950's. Today's world has become heavily dependent on these "metal moons" -?some of which are even visible from your own backyard. See "Metal Moons"?and learn more about artifcial satellites and find out how you can actually spot some of them, orbiting high overhead.