SHARAD's View of Mars During a 'Very Large Roll'
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This radargram shows data collected by the Shallow Radar, or SHARAD, on NASA's Mars Reconnaissance Orbiter (MRO) on May 2, 2023, as it performed a 120-degree roll maneuver called a "very large roll" over a formation named Medusae Fossae. Scientists used SHARAD to look for ice beneath the surface of this region. Designed to peer from about a half-mile to a little over a mile (1 to 2 kilometers) below ground, SHARAD emits radio waves that are reflected off materials in the subsurface, measuring how long it takes for those waves to bounce back to the instrument. The longer it takes, the deeper the subsurface layer is. Because different materials reflect radio waves differently, SHARAD allows sc — NASA JPL · 2025. ABD devlet eseri: kamu mali, ticari islerde de serbestce kullanilabilir.
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