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The evolution of comet pits

The evolution of comet pits


Date: 01 June 2015
Satellite: Rosetta
Copyright: See caption

Pits Ma’at 1, 2 and 3 on Comet 67P/Churyumov–Gerasimenko show differences in appearance that may reflect their history of activity. While pits 1 and 2 are active, no activity has been observed from pit 3. The young, active pits are particularly steep-sided, whereas pits without any observed activity are shallower and seem to be filled with dust. Middle-aged pits tend to exhibit boulders on their floors from mass-wasting of the sides.

The image was taken with the OSIRIS narrow-angle camera from a distance of 28 km from the comet surface. From left to right the pits measure 125 m, 130 m and 140 m across and are 65 m, 60 m and 50 m deep, respectively.

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

Last Update: 1 September 2019
28-Mar-2024 23:12 UT

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