To radio telescopes used as radar devices, the flat plains of ancient lava fields are extremely bright, as are the planet's ice caps. (public.nrao.edu)
«First - of - its - kind portable radar device: NASA, Homeland Security test disaster recovery tool.» (sciencedaily.com)
Scientists with the University of Massachusetts Amherst Engineering Research Center for Collaborative Adaptive Sensing of the Atmosphere came up with an innovative solution: Why not install dense networks of small radar devices on rooftops and towers? (discovermagazine.com)