Transcription: The second space shuttle mission utilized the payload bay instruments from the Office of Space and Terrestrial Applications, also known as OSTA. Experiments in the OSTA project concerned environmental quality, meteorology, ocean conditions and life sciences. The most prominent test performed in the OSTA project involved the Shuttle Imaging Radar-A antenna, a system that formed map-like pictures of Earth's surface through transmission and reception of microwave radiation. Scientists hope that the pictures would better define geological fault lines and formations, as well as help locate mineral ...