Synthetic-aperture radar (SAR) is a form of radar which is used to create images of an object, such as a landscape. SAR uses the motion of the SAR antenna over a target region to provide finer spatial resolution than is possible with conventional beam-scanning radars.
This overview of the surface of Venus is centered at 180 degrees east longitude. Mosaics synthetic aperture radar Magellan first mapping cycle Magellan are assigned to a computer simulated balloon to create the image. Data gaps are filled with Pioneer Venus Orbiter data with an average value midrange. The simulated color is used to improve the small scale structure.
Three images – spanning more than seven years – of Titan’s Ligeia Mare in which an elusive, radar-bright feature has been spotted. Images were created from data collected by Cassini’s Synthetic Aperture Radar (SAR). Image credit: NASA/JPL-Caltech/ASI/Cornell