May 18, 2022

NASA’s Curiosity Mars rover used its Mast Camera, or Mastcam, to capture this mound of rock nicknamed “East Cliffs” on May 7, 2022, the 3,466th Martian day, or sol, of the mission. The mound, on Mount Sharp, has a number of naturally occurring open fractures – including one roughly 12 inches (30 centimeters) tall and 16 inches (40 centimeters) wide, similar in size to a dog door. These kinds of open fractures are common in bedrock, both on Earth and on Mars.

Curiosity is currently investigating a region on Mount Sharp that may hold evidence of a major change from wetter to drier conditions in Mars’ early history.

The main panorama included here was stitched together using 113 images from Mastcam’s left lens. The image is processed to approximate the color and brightness of the scene as it would look to the human eye under normal daytime conditions on Earth.

Curiosity Captures East Cliffs - Figure A
Figure A

Figure A is the same scene as the main panorama but captured using 114 images from the right lens and showing the top of the mound more thoroughly. The “door” has been circled in this image.

Curiosity Captures East Cliffs - Figure B
Figure B

Figure B is the same right-lens view panorama as Figure A, but as a 3D anaglyph viewable with red-blue glasses.

Curiosity Captures East Cliffs - Figure C
Figure C

Figure C is zoomed in on the “dog door”-shaped open fracture, as a 3D anaglyph.

Curiosity Captures East Cliffs - Figure D
Figure D

Figure D is the same 3D anaglyph as Figure C, but with annotations indicating the approximate width, height, and depth of the open fracture.

Curiosity was built by NASA’s Jet Propulsion Laboratory in Southern California, which leads the mission on behalf of NASA’s Science Mission Directorate in Washington. Malin Space Science Systems in San Diego built and operates Mastcam.

For more about Curiosity, visit or



You Might Also Like