Tag Archives: water

Groundwater outflow in experiments and on Mars

Posted on September 3, 2015 by rburnham

Planetary Geomorphology Image of the Month, September 2, 2015: Wouter Marra (Universiteit Utrecht, Netherlands). There are many water-worn features on the planet Mars, which contribute to the reconstruction of former hydrological conditions. For example, dendritic valley networks show that there … Continue reading →

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HiRISE: Alluvial fans in southeastern Mojave Crater

Posted on April 14, 2015 by rburnham

Alluvial fans in southeastern Mojave Crater. Beautiful Mars series.

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Brines form at night when perchlorate absorbs water vapor from atmosphere

Posted on April 13, 2015 by rburnham

Researchers have long known that there was water in the form of ice on Mars. Now, new research from NASA’s Mars rover Curiosity shows that it is possible that there is liquid water close to the surface of Mars. The … Continue reading →

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Mars has mid-latitude belts of glaciers

Posted on April 8, 2015 by rburnham

Mars has distinct polar ice caps, but Mars also has belts of glaciers at its central latitudes in both the southern and northern hemispheres. A thick layer of dust covers the glaciers, so they appear as the surface of the … Continue reading →

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HiRISE: Gullies old and new near Argyre

Posted on January 28, 2015 by rburnham

As gullies form on slopes, sediment can become deposited to form lobe-shaped fans. Gullies can form with flowing water, but don’t have to: sometimes they can be formed by the dry flow of sand and dust grains. This HiRISE image … Continue reading →

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THEMIS: Atlantis Chaos false color

Posted on December 23, 2014 by rburnham

THEMIS Image of the Day, December 23, 2014. The THEMIS VIS camera contains 5 filters. The data from different filters can be combined in multiple ways to create a false color image. These false color images may reveal subtle variations … Continue reading →

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HiRISE: Recurring slope lineae in Juventae Chasma

Posted on December 11, 2014 by rburnham

Recurring slope lineae (RSL) are best explained as due to seasonal seeping of water on steep slopes in warm seasons. The HiRISE team has produced digital terrain models (DTMs) for many key RSL sites, which then allows us to orthorectify … Continue reading →

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Curiosity: Clues how water shaped Mars landscape

Posted on December 8, 2014 by rburnham

Observations by NASA’s Curiosity Rover indicate Mars’ Mount Sharp was built by sediments deposited in a large lake bed over tens of millions of years. This interpretation of Curiosity’s finds in Gale Crater suggests ancient Mars maintained a climate that … Continue reading →

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THEMIS: Mangala Valles

Posted on November 13, 2014 by rburnham

THEMIS Image of the Day, November 13, 2014. The large complex channel in the center of this VIS image is called Mangala Valles. More THEMIS Images of the Day by geological topic.

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Liquid water and water Ice on Gale Crater, Mars

Posted on September 24, 2014 by rburnham

Planetary Geomorphology Image of the Month, September 2014: Alberto G. Fairén, (Cornell University and Centro de Astrobiología, Spain). Gale Crater, the site of the currently active Mars Science Laboratory (MSL) or Curiosity Rover mission, is a ~154-km-diameter impact crater formed … Continue reading →

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