...) thick and it was identified by data taken from over 600 overhead passes by the orbiter's ground-penetrating Shallow Radar (SHARAD) instrument. "This deposit probably formed as snowfall accumulating into an ice sheet mixed with dust during a period...
... feet) deep, say those who detected this massive martian ice depository. Found by data gathered by the Shallow Radar (SHARAD) on NASA's Mars Reconnaissance Orbiter (MRO) that can peek up to 2.5 kilometres (1.5 miles) beneath the surface of Mars, this...