From: ESA Mars Express Mission
Posted: Monday, April 4, 2011
ESA's Mars Express has returned images of mist-capped volcanoes located in the northern hemisphere of the red planet. Long after volcanic activity ceased, the area was transformed by meteor impacts that deposited ejected material over the lower flanks of the volcanoes.
Permanent and transient features are on display in this newly released image of Mars. The image is derived from data acquired during three orbits of ESA's Mars Express between 25 November 2004 and 22 June 2006. In that time, these dead volcanoes were not expected to change but, during the middle orbit, Mars Express captured icy clouds drifting past the summit of Ceraunius Tholus.
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