This image shows a lobate tongue on the Northwest Hellas rim.

May 24, 2012

This image, taken by HiRISE, shows a lobate tongue on the Northwest Hellas rim.

Lobate features such as these are located in the mid-latitudes (30-60 degrees), indicative of viscous flow, are reminiscent of terrestrial glaciers and have long-been interpreted as evidence for subsurface ice.

Recent ground penetrating radar observations by SHARAD of other lobate features in this latitude belt also support the notion that these features have cores with ice.

Image source: https://hirise.lpl.arizona.edu/ESP_024000_1425

Credits

NASA/JPL-Caltech/University of Arizona

ENLARGE

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