dunes

dunes on Pluto's Sputnik Planitia ice plain
NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute via AP
June 01, 2018 - 11:28 am
By Marcia Dunn, AP Aerospace Writer CAPE CANAVERAL, Fla. (AP) — Scientists have discovered dunes on Pluto made of tiny frozen grains of methane. The pale gray and white ridges were revealed by NASA's New Horizons spacecraft during its 2015 flyby. A British-led team announced the findings Thursday...
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