https://uahirise.org Updates from the HiRISE camera onboard the Mars Reconnaissance Orbiter (MRO/NASA). We are based at the University of Arizona in Tucson, Ariz. en-us editor@uahirise.org (Ari) Tue, 14 Jul 2026 1:15:23 MST https://uahirise.org/hipod/ESP_077125_1525
This image features an interesting circular outcrop of rock that appears dark in infrared but in Context Camera data, appears to be a much rougher terrain surrounding a knob. It is possible this is the remnant of an ancient cinder cone and surrounding lava field. The area might be on a postulated shield volcano with its caldera to the north. Or is it a deposit of minerals from fumaroles similar to those found near Home Plate that the Spirit rover explored? (NASA/JPL-Caltech/University of Arizona)]]>