|MadSci Network: Physics|
Hello Vaughn. A geo-stationary orbit doesn't mean that the object isn't moving; it's actually travelling around the Earth, over 22,000 miles away from us, at a speed of roughly 7,000 mph! This movement in sequence with the Earth's rotation, means that it "appears" to be not moving. So as the space vehicle comes hurtling back into re-entry, it actually gets slowed down quite a bit by the resistive forces of the Earth's atmosphere, hence the high temperatures. I hope this answers your query. Keith Head of Physics Rhyl High School North Wales, United Kingdom
Try the links in the MadSci Library for more information on Physics.