elaine: Surface of Mars, photographed by Mars Express and Mars Reconnaissance Orbiter.
First 6 images cover 9°S to 20°S, 129°E to 131°E, showing the centre of Herschel Crater, photographed by MEx, 23rd June 2006.
Last 3 images show the detail highlighted in the 2nd image, photographed by MRO, 16th February 2012.
Image credit: ESA (MEx), NASA/JPL/UoA (MRO). Composite: AgeOfDestruction.