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Tag Archives: recurring slope lineae
Curiosity may hunt for RSLs on Mt. Sharp
Ever since it was announced that there may be evidence of liquid water on present-day Mars, NASA scientists have wondered how best to further investigate these long, seasonally changing dark streaks in the hope of finding evidence of life — … Continue reading
Posted in Reports
Tagged Aeolis Mons, Curiosity, Gale Crater, Mars Science Laboratory, Mount Sharp, MSL, NASA, recurring slope lineae, Remote Micro-Imager, RMI, RSL
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How does boiling water reshape Mars terrain?
At present, liquid water on Mars only exists in small quantities as a boiling liquid, and only during the warmest time of day in summer. Its role has therefore been considered insignificant until now. However, an international team including scientists … Continue reading
Salty flows on Mars
Planetary Geomorphology Image of the Month, December 31, 2015: Lujendra Ojha (Georgia Institute of Technology). Recurring slope lineae (RSL) are dark, narrow features forming on present-day Mars that have been suggested to be a result of transient flowing water. RSL … Continue reading
RSLs are caused by flows of liquid brines
New findings from NASA’s Mars Reconnaissance Orbiter (MRO) provide the strongest evidence yet that liquid water flows intermittently on present-day Mars. Using an imaging spectrometer on MRO, researchers detected signatures of hydrated minerals on slopes where mysterious streaks are seen … Continue reading
Posted in Reports
Tagged calcium perchlorate, Compact Reconnaissance Imaging Spectrometer for Mars, CRISM, magnesium chlorate, magnesium perchlorate, Mars Reconnaissance Orbiter, MRO, NASA, perchlorates, recurring slope lineae, RSL
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HiRISE: Seasonal flows in Asimov Crater
Seasonal flows called recurring slope lineae (RSL) grow down warm slopes in the summer, fade when they become inactive, then re-form the following year when the slopes warm up again from the Sun. We see many of these RSL over … Continue reading
Posted in Reports
Tagged Asimov Crater, High Resolution Imaging Science Experiment, HiRISE, Mars Reconnaissance Orbiter, MRO, NASA, recurring slope lineae, RSL, seasonal flows, University of Arizona
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HiRISE: Warm-season flows in cold-season ravines
Ravines (or very large gullies) are actively forming on Mars during the coldest times of year, when carbon dioxide frost aids mass wasting. However, some of these ravines also show activity in the warmest time of year, in the form … Continue reading
Posted in Reports
Tagged 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: Slope monitoring in Aram Chaos
A previous image, ESP_025954_1835 showed some striking dark downslope flows. Since this is a dark, low-dust setting, these are probably not slope streaks (which form in bright dusty areas). This image can provide us with another look, particularly in order … Continue reading
Posted in Reports
Tagged Aram Chaos, 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: Seasonal flows at Hale Crater central peak
Recurring slope lineae (RSL) are active flows on warm Martian slopes that might be caused by seeping water. One of the most active sites known on Mars in in the central peaks (uplifted mountains of deep bedrock) of Hale Crater. … Continue reading
Posted in Reports
Tagged Hale Crater, High Resolution Imaging Science Experiment, HiRISE, Mars Reconnaissance Orbiter, MRO, NASA, recurring slope lineae, RSL, seasonal flows, University of Arizona
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HiRISE: Recurring slope lineae in Raga Crater
This image covers Raga Crater, the location of well-studied recurring slope lineae (RSL). RSL are dark flows that disappear and re-form every Mars year at certain locations. A closeup image compares the dark flows at the same time in three … Continue reading
Posted in Reports
Tagged High Resolution Imaging Science Experiment, HiRISE, Mars Reconnaissance Orbiter, MRO, NASA, Raga Crater, recurring slope lineae, RSL, University of Arizona
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HiRISE: Southeast rim of Hale Crater
In the search for potential areas with recurring slope lineae (RSL), which are probably caused by briny water, the central peak of Hale Crater is a common target. But we have no images of the southeast rim of the crater. … Continue reading
Posted in Reports
Tagged Hale Crater, High Resolution Imaging Science Experiment, HiRISE, Mars Reconnaissance Orbiter, mass wasting, MRO, NASA, recurring slope lineae, RSL, University of Arizona
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