Shallow Subsurface Rader (SHARAD)
By Climate Adaptation Science Centers
2006 (approx.)
Detailed Description
Shallow Subsurface Radar (SHARAD): "SHARAD (Shallow Radar) looks for liquid or frozen water in the first few hundreds of feet (up to 1 kilometer) of Mars' crust." This instrument probes the surface with radar waves. Its antenna picks up the radar wave return, which has different strengths for different materials on the surface. Read more.
Sources/Usage
Public Domain.