Location of Becquerel crater within Arabia Terra, at about 22°N/352°E. The main image is a mosaic of four images taken by the High Resolution Stereo Camera on ESA’s Mars Express on 22 July 2006 (orbit 3253), 26 February 2008 (orbit 5332), 2 March 2008 (orbit 5332) and 7 March 2008 (orbit 5368). The orbit tracks and the area highlighted in the main image are indicated by the white rectangles.