Hadley Rille
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Hadley Rille

November 28, 2012
This Mini-RF image shows the sinuous rille Rima Hadley, site of the Apollo 15 mission to the Moon in 1971. The rille is typically over 1000 m across and about 300 m deep. The bright walls of the rille are caused by spacecraft facing slopes. Bright spots on the smooth mare plain are caused by fields of surface rocks, acting as small corner reflectors for the radar waves. The large crater that partly covers the rille at left is Hadley C (25.5° N, 2.8° E; 6 km diameter). The steep front of the Montes Apenninus (the mountain front rim of the Imbrium basin) occupy the bottom and right of the scene. Area shown is about 12 km across and 54 km long.

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