Contortions on the Floor of Hellas Basin
NASA/JPL/University of Arizona
Contortions on the Floor of Hellas Basin
ESP_016022_1420  Science Theme: Glacial/Periglacial Processes
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The floor of Hellas Basin is often obscured by atmospheric haze and dust, but it tends to be quite clear this time of year (northern spring and southern fall).

HiRISE images are revealing some very strange landforms on the floor of Hellas. Materials appear to have flowed in a viscous manner, like ice. Viscous flow features are common over the middle latitudes of Mars, but those in Hellas are often distinctive for unknown reasons.

The subimage shows an interesting area in color (reddish areas are dustier).

Written by: Alfred McEwen   (13 January 2010)

This is a stereo pair with PSP_007715_1420.

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Acquisition date:26 December 2009 Local Mars time:14:42
Latitude (centered):-37.455° Longitude (East):57.636°
Range to target site:286.9 km (179.3 miles)Original image scale range:57.4 cm/pixel (with 2 x 2 binning) so objects ~172 cm across are resolved
Map projected scale:50 cm/pixel and North is upMap projection:Equirectangular
Emission angle:25.9° Phase angle:80.7°
Solar incidence angle:62°, with the Sun about 28° above the horizon Solar longitude:29.3°, Northern Spring

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