Door 12 in the 2010 advent calendar

Time to open the twelfth door in the advent calendar. Until the New Year, I’ll be opening a door onto a different landscape from somewhere in the solar system. Where in the solar system is this trapezoidal mountain? Click to enlarge >Door 12Credit: NASA / JPL / Jason Perry This image has a resolution of 272 meters per pixel and shows an area about 175 kilometers square. Jupiter’s moon Io is well known for its active volcanoes; less well known ….


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