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NASA Mars geological observations

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2026-10-18 17:51 UTC → 2026-10-23 11:22 UTC · added ~~removed~~

NASA missions continue to provide new geological data from the Martian surface. The Mars Reconnaissance Orbiter (MRO) used its HiRISE camera to capture high-resolution images of gullies, documenting how gas escaping from beneath carbon dioxide ice moves sand and dust. These observations have prompted social media speculation about artificial structures, though scientists attribute these sightings to pareidolia. As the planet enters its spring season, MRO has captured new images showing dark spots where gas breaks out from beneath carbon dioxide ice. Scientists monitor these sites to observe how the sublimation of dry ice moves rocks and dust across the surface. Subsequently, the Curiosity rover identified unusual geological pits within Gale Crater. Unlike typical Martian depressions caused by eroding mineral nodes, these pits are described by deputy scientist Michelle Minitti as being ‘extremely wide, strangely shallow and there is no trace of any stone or mineral node around them’. ~~Researchers are currently~~ To investigate this anomaly, the science team is utilizing the Mars Hand Lens Imager (MAHLI) and Mastcam to capture overlapping, stereoscopic images for three-dimensional digital ~~modeling~~ modeling. These models aim to ~~investigate~~ understand how these features relate to the ~~erosion~~ weathering of sulfate-rich rock layers and the climatic history of Mount Sharp. Beyond the pits, Curiosity has detected variations in texture and structure between nearby rock layers. The rover recently captured a detailed dawn panorama of yardangs—wind-carved cliffs—on the northwestern reaches of Mount Sharp. This yardang layer extends approximately 16 kilometers (10 miles) along the mountain's slope and appears distinct in color and unusual layer angles from surrounding materials. Planetary scientist Ashwin Vasavada noted these features likely formed roughly 3 billion years ago from hardened sediment, such as volcanic ash or sand, sculpted by wind. In a recent unedited panorama, Curiosity captured the landscape with unexpected blue and gray tones. ~~By opting not to apply standard white balancing, mission teams preserved the natural morning light, providing a perspective different from the typical pink-red imagery caused by oxidized iron.~~

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