Tag Archives: Acidalia Planitia

THEMIS: Acidalia’s Bonestell Crater in false colors

THEMIS Image of the Day, October 9, 2018. This VIS image shows Bonestell Crater located in Acidalia Planitia. The THEMIS VIS camera contains 5 filters. The data from different filters can be combined in multiple ways to create a false … Continue reading

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HiRISE: Clays in a well-preserved impact crater in Acidalia Planitia

Clays in a well-preserved impact crater in Acidalia Planitia. Beautiful Mars series. [More at links]

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HiRISE: Crater gullies and fractures in Acidalia Planitia

This image shows the gullied western slopes of an unnamed crater (about 10 kilometers wide) in Acidalia Planitia. These slopes have gone through a complicated history of gully erosion of the bedrock layers in the upper section, followed by the … Continue reading

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HiRISE: Gullies in a crater in Acidalia Planitia

Gullies in a crater in Acidalia Planitia. The objective of this observation is to examine gullies on the north wall of a crater. The slope looks quite steep and the gullies are fairly straight. Beautiful Mars series. [More at links]

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HiRISE: Fans and valleys

An impact crater approximately 23 kilometers across is home to fan-shaped deposits that extend from the rim and sit on the interior crater floor. Thick beds with varying tone are exposed along the edge of the fan. Shallow valleys that … Continue reading

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HiRISE: Dunes next to a central peak

The dunes, they are coming for you! These dunes are next to a central peak in a crater. Beautiful Mars series. [More at links]

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THEMIS: Milankovic Crater dunes

THEMIS Image of the Day, June 4, 2018. Milankovic Crater is located in central Arcadia Planitia. This VIS image shows small dark sand dunes on the crater floor, and larger dunes within the central crater peak/pit feature. With a diameter … Continue reading

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THEMIS: Blast scour at Bonestell Crater

THEMIS Image of the Day, April 17, 2018. Bonestell Crater is a relatively young crater located in Acidalia Planitia. The grooved surface of the ejecta blanket is evident in this VIS image. The grooves were likely eroded by the outward … Continue reading

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HiRISE: Troughs with axial ridges in Acidalia Planitia

Troughs with axial ridges in Acidalia Planitia. There are large, hundreds of meters in length, troughs in Acidalia Planitia, with high axial ridges down the center. While they appear fairly bland in Mars Orbital Camera images, we can see better … Continue reading

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HiRISE: Evolution of gully features in Acidalia Planitia

This observation captures details regarding the evolution of gully features observed in a crater in Acidalia Planitia. A Context Camera image provides context for these gullies showing an approximately 7-kilometer diameter crater in which we see that the gullies occur … Continue reading

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