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Cryptic Mars, a land shaped by ice

Written by  Wednesday, 09 October 2024 08:00
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Cryptic terrain in Australe Scopuli on Mars

ESA’s Mars Express has captured an astonishing array of landforms emerging from a thick winter blanket of frost as spring arrives in the south polar region of Mars. Some of these features are surprisingly dark compared with their icy surroundings, earning their nickname of ‘cryptic terrain’.

Periglacial landforms in perspective (3)
Periglacial landforms in perspective (3)

Exploring Mars

It is thanks to the longevity of missions like Mars Express, which arrived in orbit around the Red Planet in 2003, that seasonal changes can be observed over many years and once-cryptic features can be better understood.

As well as studying the ice caps of the planet the HRSC has shown us the full range of Mars’ geological features, from wind-sculpted ridges and grooves to sinkholes on the flanks of colossal volcanoes to impact craters, tectonic faults, river channels and ancient lava pools.

With its suite of eight instruments Mars Express also maps the planet’s minerals, explores the composition and circulation of its atmosphere, probes beneath its crust, and studies the martian environment.

The mission has been immensely productive over its lifetime, creating a far fuller and more accurate understanding of our planetary neighbour than ever before.

The Mars Express High Resolution Stereo Camera (HRSC) was developed and is operated by the German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt; DLR).


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