Related topics: mars

Image: Mysterious South Pole formation on Mars

This observation from NASA's Mars Reconnaissance Orbiter show it is late summer in the Southern hemisphere, so the Sun is low in the sky and subtle topography is accentuated in orbital images.

Earth is bombarded at random

Do mass extinctions, like the fall of the dinosaurs, and the formation of large impact craters on Earth occur together at regular intervals? "This question has been under discussion for more than thirty years now," says Matthias ...

Martian winds carve mountains, move dust, raise dust

On Mars, wind rules. Wind has been shaping the Red Planet's landscapes for billions of years and continues to do so today. Studies using both a NASA orbiter and a rover reveal its effects on scales grand to tiny on the strangely ...

Image: Well-preserved impact ejecta on Mars

This image of a well-preserved unnamed elliptical crater in Terra Sabaea, is illustrative of the complexity of ejecta deposits forming as a by-product of the impact process that shapes much of the surface of Mars.

Image: Hues in a Martian crater slope

Impact craters expose the subsurface materials on the steep slopes of Mars. However, these slopes often experience rockfalls and debris avalanches that keep the surface clean of dust, revealing a variety of hues, like in ...

3-D images reveal features of Martian polar ice caps

Three-dimensional subsurface images are revealing structures within the Martian polar ice caps, including previously obscured layering, a larger volume of frozen carbon dioxide contained in the south polar cap, and bowl-shaped ...

New evidence for a warmer and wetter early Mars

A recent study from ESA's Mars Express and NASA's Mars Reconnaissance Orbiter (MRO) provides new evidence for a warm young Mars that hosted water across a geologically long timescale, rather than in short episodic bursts ...

Ice not a major factor of dwarf planet Ceres' surface features

Although there is significant evidence of ice on the surface of the dwarf planet Ceres, the largest object in orbit between Mars and Jupiter, an analysis of the surface geology indicates that ice is not a major factor in ...

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