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Rheasilvia
Filed under pretty pictures, asteroid 4 Vesta, Dawn
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The asteroid Vesta as seen by the Dawn spacecraft. What could have caused the ripples around its equator seen in the top image? Possibly the massive impact that carved out Rheasilvia Basin at the south pole, shown in the middle image. Finally, an elevation map showing the feature's extreme topography.
NASA/JPL/UCLA/MPS/DLR/IDA/PSI
This image is in the public domain. Original image data dated on or about July 23, 2011
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