14/03/2019 3:00 pm
ESA/Roscosmos/CaSSIS, CC BY-SA 3.0 IGO
Use red-blue stereo ‘3D’ glasses to best enjoy this view of dust dunes cascading over the edge of Green Crater, in the Noachis Terra region of Mars.
Dunes on Mars are dynamic features, observed to move at speeds of up to 5 m per martian year. Dust devil streaks –blue in this colour-composite representation – are seen on the interior wall of the crater. The different colours indicate the range of surface composition both inside and outside the crater.
The image was created from a stereo pair taken by the Colour and Stereo Surface Imaging System (CaSSIS) onboard the ESA-Roscosmos ExoMars Trace Gas Orbiter on 10 December 2018. The image is aligned from left to right along the ground-track of the spacecraft. It is centred at 59.92ºS/351.66ºE and measures about 7 km on the short side.
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