Radar beams quite literally move at the speed of light, and when they bounce off an object in the sky and return to the radar site to be collected and analyzed, we called that an “echo.” For weather ...

A team of scientists from the Naval Research Laboratory, the Air Force Research Laboratory’s (AFRL’s) Research Vehicles Directorate, Kirtland Air Force Base, N.M., and the University of New Mexico ...

The U.S. has spent half again as much (nearly $3 billion) on radar as on atomic bombs. As a military threat, either in combination with atomic explosives or as a countermeasure, radar is probably as ...

Rather than assuming that modern Mars is too cold and dry to sustain liquid water, new evidence is challenging that belief. Data from the Mars Advanced Radar for Subsurface and Ionosphere Sounding ...