Many valleys occur all over Mars that reveal an extensive ancient history of liquid water erosion. While these valley systems are typically now covered with fine soils and sand dunes, the overall scale and shape of the valleys reveals much about the ancient climate. The speed, volume, and extent of the flowing water can be apparent from how it interacts with obstacles. For example, large volumes of rapidly flowing water may overtop obstacles rather than be diverted around them. Or, a small stream flowing for an extend period may gradually cut downward…. [More at link]
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mission instruments
- CRISM: Compact Reconnaissance Imaging Spectrometer for Mars
- CTX: Context Camera
- HiRISE: High Resolution Imaging Science Experiment
- MARSIS: Mars Advanced Radar for Subsurface and Ionosphere Sounding
- SHARAD: Shallow Radar
- THEMIS: Thermal Emission Imaging System
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- All Mars missions list
- Curiosity rover
- ExoMars
- Hope (al-Amal) orbiter
- InSight
- Mars Atmosphere and Volatile Evolution Mission (MAVEN)
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- Mars Express (MEX)
- Mars Odyssey
- Mars Orbiter Mission (MOM) / Mangalyaan
- Mars Reconnaissance Orbiter (MRO)
- Mars Science Laboratory (MSL)
- Perseverance Rover
- Tianwen-1 orbiter/rover
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