1966-12-14 USA Biosatellite 1

A "SpaceCraft" illustrated cachet cover cancelled on the day of launch of BIOSATELLITE, Cape Canaveral December 14, 1966.
Photo: "BIOSATELLITE, the first United States unmanned orbiting vehicle designed to conduct biological experiments in outer space, is prepared by technicians for its mid December flight. Completely automatic because it must conduct experiments in flight as well as return to a recoverable location, the GE-built craft will be as complicated as anything yet launched in terms of what it must perform. Experiments will be performed on the effects of weightlessness and radiation on terrestrial life. NEA. December 23, 1966."