HiRISE (NASA)  

HiRISE 3D: Hillslope Shapes on the Rim of Holden Crater

Sediment-covered hillslopes are sensitive markers of the local climate and hydrology during their formation.

Full image: uahirise.org/anaglyph/ESP_0850

NASA/JPL-Caltech/University of Arizona

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Galactic Goal  

@HiRISE
Any idea how old those fresh craters are in the upper middle of the image? They make me not want to have a house on the surface until Mars gets a nice, thick atmosphere.

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HiRISE (NASA)
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@jurban Good question: they are small enough to be more "recent" since the era of large bombardments is long over. While still visible, they are clearly filled in with material and we cannot see any ejecta, so it could be centuries old. 🤯

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Galactic Goal  

@HiRISE
Still looks like a dangerous planet to live on the surface of.

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