Near-Earth space extends to geosynchronous orbits where satellites remain faithfully over a fixed spot on the ground. This volume describes many of the activities going on within this area, and their prospects for changing the way we live, communicate and travel on Earth. These activities include: meteorology; seismic and crop-yield predictions; environmental monitoring; communication of all sorts; guidance and navigation; medical and educational services; treaty verification and photographic reconnaissance; news gathering; scientific observation across the entire electromagnetic spectrum; prospecting; remote sensing; and monitoring of human activities.