The Uninhabited Aerial Vehicle Synthetic Aperture Radar, or UAVSAR, is an imaging radar instrument that collects key measurements of Earth deformation. When flown over the same area multiple times, it can determine how land features have changed. So far, it has been put to work studying climate change in the Arctic and examining Earth deformation after major earthquakes and volcanoes.

The instrument is designed to fly aboard a NASA Gulfstream III aircraft and eventually on uninhabited aerial vehicles.