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Ancient Martian volcano Caldera.
This image, taken by ESA's Mars Express spacecraft, shows Apollinaris Patera, an ancient Volcano caldera near Gusev Crater on Mars. The massive Volcano measures 180 by 280 kilometres (112 by 174 miles) at its base and rises 5 km (3 miles) above the surrounding terrain. The bluish-tinted haze are thin clouds above the rim of the caldera. Apollinaris Patera on Mars.
This image, taken by the High Resolution Stereo Camera (HRSC) on board ESA's Mars Express spacecraft, shows the caldera of Apollinaris Patera, an ancient, 5-kilometre-high Volcano northwest of Gusev Crater.
Apollinaris Patera is an ancient shield Volcano located at the northern edge of the Southern Highlands, lying to the south-east of Elysium Planitia and to the north of Gusev Crater, which is now being explored by NASA's Mars Rover, Spirit.
The Volcano measures approximately 180 by 280 kilometres at its base and rises to a maximum of 5 kilometres above the surrounding terrain.
In this true-colour image, the terrain is partly covered by thin, diffuse, whitish-appearing clouds.
The western region of the colour image (top of the image, as north is to the right) is characterized by brighter material, which seems to be layered and could be the result of sedimentary deposition. Distinct layering, causing a terrace-like appearance, is also visible east of this brighter material and in the relatively flat region located in the northwest (top right) of the colour image.
The colour scenes have been derived from the three HRSC-colour channels and the nadir channel. The anaglyph image was calculated from the nadir and one stereo channel. Image resolution has been decreased for use on the internet.
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