NASAのインスタグラム(nasa) - 5月9日 03時54分

Our MESSENGER mission has unveiled the first global digital elevation model of Mercury, revealing in stunning detail the topography across the entire innermost planet and paving the way for scientists to fully characterize Mercury’s geologic history.
Here's a view of Mercury’s northern volcanic plains shown in enhanced color to emphasize different types of rocks on Mercury’s surface. In the bottom right portion of the image, the 181-mile- (291-kilometer)-diameter Mendelssohn impact basin, named after the German composer, appears to have been once nearly filled with lava.
Toward the bottom left portion of the image, large wrinkle ridges, formed during lava cooling, are visible. Also in this region, the circular rims of impact craters buried by the lava can be identified. Near the top of the image, the bright orange region shows the location of a volcanic vent.

Credits: NASA/JHUAPL/Carnegie Institution of Washington
#science #space #NASA #astronomy #planets #mercury

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