Oppurtunity, SOL3902B door Fenr-i-r

Courtesy NASA/JPL-Caltech Mars Opportunity rover on Sol 3902, looking out over Cape Tribulation. Full Image: http://mars.nasa.gov/mer/gallery/press/opportunity/20150122a/mars-rover-opportunity-pia19110_Sol3902B_Cape_Tribulation_L257F.jpg