Martian volcanoes
Martian volcanoes Widefield image of the Mars' Tharsis volcanic region, captured on June 29, 2014 during Mars Express' 13,323rd orbit of Mars. Olympus Mons is at center. Across top center from left to right are Ascraeus Mons, Pavonis Mons, and Arsia Mons. Noctis Labyrinthus can be seen near the horizon at top left. Click here for a lossless PNG version (10 MB). ESA / DLR / FU Berlin / Justin Cowart

This image uses low resolution blue, green, and IR color data (with green and IR blended 50-50 to produce a synthetic red image) overlaid on a high-resolution clear filter image.