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Permanently shadowed, radar-bright regions on Mercury

Permanently shadowed, radar-bright regions on Mercury

NASA / JHUAPL / CIW / NAIC, Arecibo Observatory

Permanently shadowed, radar-bright regions on Mercury
Shown in red are areas of Mercury’s north polar region that are in shadow in all images acquired by MESSENGER to date. The polar deposits imaged by Earth-based radar are in yellow. This comparison indicates that all of the polar deposits imaged by Earth-based radar are located in areas of persistent shadow as documented by MESSENGER images.

Updated from N. L. Chabot et al., Journal of Geophysical Research, 117, doi: 10.1029/2012JE004172 (2012).

Most NASA images are in the public domain. Reuse of this image is governed by NASA's image use policy.

Original image data dated on or about November 29, 2012

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