Last updated on April 20, 2014 at 8:28 EDT
Reiner Gamma Region of Interest
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Reiner Gamma Region of Interest

November 30, 2012
First identified by early astronomers during the Renaissance, the Reiner Gamma formation has been a subject of intense scientific study for almost five decades. Reiner Gamma is one of the most distinctive natural features on the Moon. This striking, tadpole-shaped swirl has a significantly higher reflectance than the surrounding mare basalts. The heart of the region of interest in the Reiner Gamma swirl. Image width is 510 m [NASA/GSFC/Arizona State University].