4 years ago
Inside a Martian canyon
The Colour and Stereo Surface Imaging System (CaSSIS) onboard the ExoMars Trace Gas Orbiter mission returned this image of an area in Melas Chasma, part of the vast Valles Marineris canyon system on Mars. Valles Marineris stretches for more than 4000 km across the planet’s surface, and plunges more than 7 km deep in places.
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