Solving the Mystery of NASA's Photo of "Entrance to Mars that Appears to be Artificially Carved Out of Rock"

Preface
- I went to John Greenwald, Jr.'s site and found the following photo. The shape of what appears to be an "artificial entrance" to the Martian rock is clearly visible.



ref: Doorway on Mars or Just An Illusion? Mysterious Mars Photo Intrigues Social Media - The Black Vault Case Files - https://www.theblackvault.com/casefiles/doorway-on-mars-or-just-an-illusion-mysterious-mars-photo-intrigues-social-media/


- A high-resolution version of the same photo is posted on NASA's website.

ref: Sol 3466: Mast Camera (Mastcam) – NASA Mars Exploration - https://mars.nasa.gov/raw_images/1064629/


Solve the mystery of this photo
- I am sure someone has already pointed out this identity, as one glance at the site should have revealed it. This identity is merely a crack and exfoliation of the rock.

Illustration
- Numerous similar cracks and detachments in the rock occur near the "entrance" in question. Similar cracks are shown in the same color.




(2022-08-04)