Tag Archives: impact craters

HiRISE: Classic crater

Well preserved and loving it. Is there something particularly special about this nice, 2-kilometer diameter crater? Maybe not, but its simplicity, classic shape and fairly well-preserved rim speak for itself in a desolate landscape. HiRISE Picture of the Day archive. … Continue reading

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Did the Lomonosov Crater impact create a mega-tsunami?

[Editor’s note: From a paper by François Costard and eight co-authors recently published in the Journal of Geophysical Research.] The Lomonosov Crater Impact Event: A Possible Mega‐Tsunami Source on Mars • Unusual morphometric characteristics of Lomonosov crater in comparison to … Continue reading

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Curiosity: Mastcam, near and far

Sol 2468, July 17, 2019. The wide-angle (34mm) Mastcam shot an outcrop next to Curiosity that shows layered sediments on the left and a different texture on the right. Below is a five-frame sequence looking toward a local rise and … Continue reading

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HiRISE: Uncommon

Uncommon. Craters are, of course, common on Mars, but what is interesting about this one is that the impact excavated some uncommon hydrous minerals. Also, the image suggester’s name is John Carter. Make of that what you will. HiRISE Picture … Continue reading

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HiRISE: A crater on the south polar layered deposits

This image is part of a campaign to image potential impact craters in the south polar layered deposits (ice cap). This feature looks like a strong candidate for an impact crater because it is very circular are still has a … Continue reading

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Groundwater origin for recurring slope lineae?

In mid-2018, researchers supported by the Italian Space Agency detected the presence of a deep-water lake on Mars under its south polar ice caps. [Ed. note: previously reported here.] Now researchers at the USC Arid Climate and Water Research Center … Continue reading

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THEMIS: Impact craters in Arabia Terra

THEMIS Image of the Day, March 29, 2019. This false-color VIS image shows parts of several craters located in Arabia Terra. Blue tones in false color images indicated the presence of basaltic sands. The THEMIS VIS camera contains 5 filters. … Continue reading

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THEMIS: Big impacts and little in Terra Cimmeria

THEMIS Image of the Day, March 13, 2019. This VIS image contains three craters. There is a quarter of the largest crater in the top half of the image, half of a smaller crater at the very top, and the … Continue reading

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HiRISE: Living on the edge

Living on the edge. The rim of this crater looks fairly sharp, meaning it hasn’t degraded too much even though it is likely very old. The exposed, light-toned bedrock is a bonus. HiRISE Picture of the Day archive [More at … Continue reading

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THEMIS: Volcanic plains east of Olympus Mons

THEMIS Image of the Day, February 22, 2019. This VIS false-color image shows a small part of the extensive volcanic plains located east of the giant volcano Olympus Mons. While the colors are generally soft and subtle, they indicate real … Continue reading

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