Latest Space-Based Radar Stories
The ocean covers 71 percent of Earth's surface and affects weather over the entire globe. Hurricanes and storms that begin far out over the ocean affect people on land and interfere with shipping at sea.
NASA's Seasat satellite became history long ago, but it left a legacy of images of Earth's ocean, volcanoes, forests and other features that were made by the first synthetic aperture radar ever mounted on a satellite.
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The Alaska Satellite Facility Distributed Active Archive Center has released newly processed digital images from NASA's Seasat satellite that were taken 35 years ago.
Small satellite manufacturer Surrey Satellite Technology Limited (SSTL) has today announced completion of the development phase of its new low-cost Synthetic Aperture Radar (SAR) satellite system.
NASA will 'break the ice' on a pair of new airborne radars that can help monitor climate change when a team of scientists embarks this week on a two-month expedition to the vast, frigid terrain of Greenland and Iceland.
ESAâ€™s Mars Express radar sounder, MARSIS, has looked beneath the Martian surface and opened up the third dimension for planetary exploration. The techniqueâ€™s success is prompting scientists to think of all the other places in the Solar System where they would like to use radar sounders.
NASA's Mars Reconnaissance Orbiter has extended the long-armed antenna of its radar, preparing the instrument to begin probing for underground layers of Mars.
A radar altimeter measures altitude above the terrain beneath an aircraft as opposed to a barometric altimeter which provides the distance above a pre-determined datum, usually sea level. Radar is the underpinning principle of the system. Radio waves that are reflected back from the ground are timed in order to calculate speed, distance, and time which are related to the each other and can be used to calculate the distance from one point to another. Lloyd Espenschied invented the radar...