Mysteries rond methaan op Mars   Artist's impression of Mars Express Vreemde ontwikkeling     Prioriteit     The High Resolution Stereo Camera on board ESA’s Mars Express orbiter imaged Nepenthes Mensae, a river delta on Mars, on 22 January 2008. The data was acquired in the region lying at approximately 3° north and 121° east with a ground resolution of 15 m/pixel. Achtergrond     Release date: 17 augustus 2009