A Criss-Cross Landscape with Fresh Craters
A Criss-Cross Landscape with Fresh Craters
ESP_065189_1700  Science Theme: Impact Processes
This image shows terrain near Mangala Valles. At the bottom of the image are two black spots that are recent impact craters.

The black spots form because the craters exposed cleaner materials in the subsurface beneath the bright, dusty surface. Our image is also interesting because the surface has a criss-cross pattern formed by wind activity. Bright ripples that are oriented from the upper right to the lower left are perpendicular to the wind flow.

In contrast, outcrops that have been eroded by the wind are oriented perpendicular to the ripples to produce the criss-cross pattern we now observe.

Written by: Cathy Weitz  (5 October 2020)
Acquisition date
23 June 2020

Local Mars time

Latitude (centered)

Longitude (East)

Spacecraft altitude
263.0 km (163.5 miles)

Original image scale range
26.5 cm/pixel (with 1 x 1 binning) so objects ~79 cm across are resolved

Map projected scale
25 cm/pixel and North is up

Map projection

Emission angle

Phase angle

Solar incidence angle
54°, with the Sun about 36° above the horizon

Solar longitude
225.0°, Northern Autumn

For non-map projected images
North azimuth:  97°
Sub-solar azimuth:  350.9°
Black and white
map projected  non-map

IRB color
map projected  non-map

Merged IRB
map projected

Merged RGB
map projected

RGB color
non-map projected

Black and white
map-projected   (339MB)

IRB color
map-projected   (172MB)

Black and white
map-projected  (128MB)
non-map           (209MB)

IRB color
map projected  (37MB)
non-map           (170MB)

Merged IRB
map projected  (87MB)

Merged RGB
map-projected  (84MB)

RGB color
non map           (161MB)
B&W label
Color label
Merged IRB label
Merged RGB label
EDR products

IRB: infrared-red-blue
RGB: red-green-blue
About color products (PDF)

Black & white is 5 km across; enhanced color about 1 km
For scale, use JPEG/JP2 black & white map-projected images

All of the images produced by HiRISE and accessible on this site are within the public domain: there are no restrictions on their usage by anyone in the public, including news or science organizations. We do ask for a credit line where possible:
NASA/JPL/University of Arizona

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.