The DLR-operated High Resolution Stereo Camera on board ESA's Mars Express spacecraft acquired images of Phobos on 9 January 2011. The south pole is visible at the bottom right, just next to the dark crater. This image of Phobos has been photometrically enhanced to make details in the poorly-illuminated areas appear more clearly. The resolution is 3.9 meters per pixel.
As a joint undertaking by DLR, ESA and FU Berlin, the Mars Express HRSC images are published under a Creative Commons licence since December 2014: ESA/DLR/FU Berlin, CC BY-SA 3.0 IGO. This licence will also apply to all HRSC images released to date.