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Back Ripples and wind-tails

Ripples and wind-tails


Date: 21 January 2015
Satellite: Rosetta
Depicts: Comet 67P/Churyumov-Gerasimenko
Copyright: See below

Features in the Hapi region show evidence of local gas-driven transport producing dune-like ripples (left) and boulders with 'wind-tails' (right) – where the boulder has acted as a natural obstacle to the direction of the gas flow, creating a streak of material 'downwind' of it. The images were taken with the OSIRIS narrow-angle camera on 18 September 2014.

Credit: ESA/Rosetta/MPS for OSIRIS Team MPS/UPD/LAM/IAA/SSO/INTA/UPM/DASP/IDA

Last Update: 1 September 2019
16-Feb-2026 14:03 UT

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