THEMIS: Soft-featured craters in Arcadia Planitia

Soft-featured craters in Arcadia Planitia (THEMIS_IOTD_20181019)THEMIS Image of the Day, October 19, 2018. This false-color VIS image shows some of the plains and craters located in Arcadia Planitia.

The soft-looking features in the impact craters indicate ground ice at shallow depths below the surface. In such cases, the heat of impact melts the ice, causing surface features to slump and flow.

Additionally, the two craters at the bottom of the image formed at the same moment by a double (binary) impact, and their surrounding debris aprons raised a low ridge where they collided between the two craters.

The THEMIS VIS camera contains 5 filters. The data from different filters can be combined in multiple ways to create a false color image. These false color images may reveal subtle variations of the surface not easily identified in a single band image.

See more THEMIS Images of the Day by geological subject.

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