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Mars Express' Image of Hecates Tholus.

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Mars Express Spacecraft.
Mars Express Spacecraft: Image credit: http://www.esa.int/SPECIALS/Mars_Express/SEMTXD2PGQD_1.html#subhead1.

The European Space Agency's Mars Express spacecraft took this image of the caldera of Volcano Hecates Tholus; it's 5300 metres tall, and the northernmost of the Elysium Volcano group. The photo was taken during orbit 32, when the spacecraft was 275 km above the volcano.

The colour image (with north at the top) shows the summit caldera of Hecates Tholus, the northernmost Volcano of the Elysium Volcano group. The Volcano reveals multiple caldera collapses. On the flanks of Hecates Tholus, several flow features related to water (lines radiating outwards) and pit chains related to lava can be observed. The Volcano has an elevation of 5300 m, the caldera has a diameter of maximum 10 km and a depth of 600 m. The image centre is located at 150º East and 31.7º North.

Credits: ESA/DLR/FU Berlin (G. Neukum)

Original Source: ESA News Release

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