Tilted and Layered Bedrock Blocks in a Large Crater inside Becquerel Crater
Tilted and Layered Bedrock Blocks in a Large Crater inside Becquerel Crater
ESP_025782_2020  Science Theme: Sedimentary/Layering Processes
There is a crater nearly 50 kilometers in diameter inside the 167-kilometer Becquerel Crater, named after Antoine Henri Becquerel, the discoverer of radioactivity along with Marie and Pierre Curie.

This image shows layered blocks tilted at high angles, diverse color and textures and dark dunes. Some of the bedrock may have originated at great depths, uplifted first by Becquerel Crater and later by the 50-kilometer crater.

Why didn’t we image such an interesting target sooner in the MRO mission? Because this feature falls along MRO orbits that also cover the Opportunity rover sites in Meridiani, parts of the Mawrth Vallis region, the layered deposits in Becquerel but outside this 50-kilometer crater, Asimov Crater with spectacular troughs and gullies, and Russell Crater with giant dunes and a key monitoring site. There are just too many good targets along some orbits, and not enough in other orbits.

Fortunately MRO is proving to be a long-lived mission so we have the chance to cover more of the most interesting regions of Mars.

Written by: Alfred McEwen  (29 February 2012)

This is a stereo pair with ESP_025637_2020.
Acquisition date
26 January 2012

Local Mars time

Latitude (centered)

Longitude (East)

Spacecraft altitude
285.8 km (177.6 miles)

Original image scale range
28.6 cm/pixel (with 1 x 1 binning) so objects ~86 cm across are resolved

Map projected scale
25 cm/pixel and North is up

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Emission angle

Phase angle

Solar incidence angle
41°, with the Sun about 49° above the horizon

Solar longitude
62.1°, Northern Spring

For non-map projected images
North azimuth:  97°
Sub-solar azimuth:  13.9°
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NASA’s Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, Calif., manages the Mars Reconnaissance Orbiter for NASA’s Science Mission Directorate, Washington. The HiRISE camera was built by Ball Aerospace and Technology Corporation and is operated by the University of Arizona.