VECTORPOINT

Opening your observatory…

The doorway at East Cliffs

Door-Shaped Fracture Spotted by Curiosity at East Cliffs
NASA/JPL-Caltech/MSSS

Processed image. The entire East Cliffs mound puts the small opening among many fractures. Panorama assembled from 113 left-camera images; colour and brightness were adjusted to approximate terrestrial daylight.

NASA/JPL image-use policy · credited mission imagery, resized to WebP

· Original image source · Image licence

A small fracture became a worldwide invitation to look closer.

World
Mars
Case date or period
7 May 2022 · Curiosity sol 3466

Look closer

Start with the full mound, then compare the two individual Mastcam frames. The opening was photographed on 7 May 2022. Its apparent familiarity makes the surrounding fractured rock especially worth examining.

Follow the evidence

The Black Vault preserved the circulating photographs while explicitly withholding a conclusion and stating that it had not conducted a formal investigation. JPL describes a natural opening around 30 centimetres high and 40 centimetres wide.

An independent perspective

John Greenewald archived the social-media discussion and both original frames. The Black Vault labels this an information case, explicitly saying that it conducted no formal investigation and adopted no conclusion. Its value here is preserving the public question and the exact images behind it.

A panorama is assembled, not a single exposure

NASA’s release distinguishes the panorama from its component frames. The main view combines 113 left-lens Mastcam images; a second panorama uses 114 right-lens images. The published colour and brightness approximate an Earth-daylight appearance. Stereo anaglyph versions provide another way to inspect the fracture’s depth. These products help place the opening within a fractured mound, but their stitching, colour processing and stereo presentation should remain distinct from the individual rover exposures.

Sources & further reading