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Tag Archives: recurring slope lineae
Water ice is buried near Mars equator in small areas
A re-analysis of data from the Neutron Spectrometer on NASA’s Mars Odyssey orbiter has nearly doubled the data’s resolution. The higher-resolution data show that small deposits of water ice lie buried at shallow depths near the martian equator in several … Continue reading
Posted in Reports
Tagged Cerberus Fossae, Elysium Mons, Elysium Planitia, Mars Odyssey, Medusae Fossae Formation, MFF, Neutron Spectrometer, recurring slope lineae, RSL
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HiRISE: Gullies and craters and dunes, oh my!
This unnamed, approximately 30-kilometer diameter crater, formed in the Southern highlands of Mars. Our image shows regions of geologic diversity within, making this an interesting spot for scientists to study how different Martian processes interact with each other. Gullies, or … Continue reading
Posted in Reports
Tagged dunes, gullies, High Resolution Imaging Science Experiment, HiRISE, Mars Reconnaissance Orbiter, mass wasting, MRO, NASA, recurring slope lineae, RSL, University of Arizona
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HiRISE: Active flows on steep slopes in Ganges Chasma
This image covers a steep west-facing slope in southwestern Ganges Chasma, north of the larger canyons of Valles Marineris. The spot was targeted both for the bedrock exposures and to look for active slope processes. We see two distinct flow … Continue reading
Posted in Reports
Tagged Ganges Chasma, High Resolution Imaging Science Experiment, HiRISE, Mars Reconnaissance Orbiter, MRO, NASA, recurring slope lineae, RSL, seasonal flows, University of Arizona, Valles Marineris
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HiRISE: Seasonal flows in Valles Marineris
Recurring slope lineae (RSL) are seasonal flows on warm slopes, and are especially common in central and eastern Valles Marineris. This image covers a large area full of interesting features, but the enhanced color closeup highlight some of the RSL. … Continue reading
Posted in Reports
Tagged High Resolution Imaging Science Experiment, HiRISE, Mars Reconnaissance Orbiter, MRO, NASA, recurring slope lineae, RSL, University of Arizona, Valles Marineris
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HiRISE: Colorful equatorial gullies in Krupac Crater
Although large gullies (ravines) are concentrated at higher latitudes, there are gullies on steep slopes in equatorial regions. An enhanced-color closeup shows part of the rim and inner slope of Krupac Crater located just 7.8 degrees south of the equator. … Continue reading
Posted in Reports
Tagged gullies, High Resolution Imaging Science Experiment, HiRISE, Krupac Crater, Mars Reconnaissance Orbiter, MRO, NASA, recurring slope lineae, RSL, University of Arizona
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HiRISE: Seasonal flows on warm slopes
Recurring Slope Lineae (called “RSL”) are seasonally-repeating dark flows that are active at the warmest times of the year. Some of these grow from the top of the steep slope downwards as expected for liquid or granular flows. Others show … Continue reading
Posted in Reports
Tagged High Resolution Imaging Science Experiment, HiRISE, Mars Reconnaissance Orbiter, MRO, NASA, recurring slope lineae, RSL, University of Arizona
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HiRISE: Slope streaks or recurring slope lineae?
The image shows a region we see many slope streaks, typically dark features on slopes in the equatorial regions on Mars. They may extend for tens of meters in length and gradually fade away with time as new ones form. … Continue reading
Posted in Reports
Tagged dark slope streaks, High Resolution Imaging Science Experiment, HiRISE, Mars Reconnaissance Orbiter, MRO, NASA, recurring slope lineae, RSL, University of Arizona
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THEMIS: Gullies, ejecta at Palikir Crater
THEMIS Image of the Day, October 27, 2016. Today’s VIS image is of Palikir Crater in Terra Sirenum. The inner rim of the crater is dissected with numerous gullies. In higher resolution images from other imagers these gullies are the … Continue reading
Posted in Reports
Tagged Arizona State University, ASU, gullies, Mars Odyssey, NASA, Palikir Crater, recurring slope lineae, RSL, Terra Sirenum, THEMIS, THEMIS Image of the Day, Thermal Emission Imaging System
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No damp ground found at RSL seasonal streaks
Seasonal dark streaks on Mars that have become one of the hottest topics in interplanetary research don’t hold much water, according to the latest findings from a NASA spacecraft orbiting Mars. The new results from NASA’s Mars Odyssey mission rely … Continue reading
Posted in Reports
Tagged Arizona State University, ASU, Mars Odyssey, NASA, recurring slope lineae, RSL, THEMIS, Thermal Emission Imaging System
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Do salts draw water from atmosphere for RSLs?
Puzzles persist about possible water at seasonally dark streaks on Martian slopes, according to a new study of thousands of such features in the Red Planet’s largest canyon system. The study published today [in the Journal of Gephysical Research] investigated … Continue reading
Posted in Reports
Tagged Coprates Chasma, Melas Chasma, recurring slope lineae, RSL, salts, Valles Marineris
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