NASA's shape models of Bennu, Kleopatra, Vesta, Toutatis, Geographos and Mithra morph into one another while spinning in front of a simulated planetary radar — and the tile shows only the delay-Doppler echo image the radar would record: range down, Doppler across, each surface element's echo summed into speckled cells over a noisy receiver floor. Drag to turn the asteroid; click to skip ahead.