A New Impact Crater with Bright Ejecta
A New Impact Crater with Bright Ejecta
ESP_068561_1700  Science Theme: Impact Processes
The Context Camera onboard MRO has been discovering new impact sites on Mars, followed up with HiRISE images. Usually these sites are discovered as new dark spots from removal or disturbance of bright dust, but a few show up as new bright spots.

These craters may have bright ejecta from exposure of shallow subsurface materials, below a thin dark cover. An alternate theory—that this is a particle size effect—is unlikely because the bright materials are also distinctly redder than surrounding areas, and because ejecta is typically more coarse-grained, which would make the surface darker rather than brighter.

The new crater visible here is about 13 meters in diameter. The color has been enhanced for this cutout.

Written by: Alfred McEwen (narration: Tre Gibbs)  (12 May 2021)

This is a stereo pair with ESP_068033_1700.
Acquisition date
12 March 2021

Local Mars time

Latitude (centered)

Longitude (East)

Spacecraft altitude
261.2 km (162.4 miles)

Original image scale range
26.2 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
49°, with the Sun about 41° above the horizon

Solar longitude
16.2°, Northern Spring

For non-map projected images
North azimuth:  97°
Sub-solar azimuth:  23.8°
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   (376MB)

IRB color
map-projected   (229MB)

Black and white
map-projected  (158MB)
non-map           (223MB)

IRB color
map projected  (50MB)
non-map           (185MB)

Merged IRB
map projected  (94MB)

Merged RGB
map-projected  (88MB)

RGB color
non map           (185MB)
Map-projected, reduced-resolution
Full resolution JP2 download
Anaglyph details page

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’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.