Tag Archives: impact craters

HiRISE: Crater in the aureole of Pavonis Mons

A crater in the aureole of Pavonis Mons. This is an unusual crater in the Pavonis Mons aureole, possibly a glacial deposit. It appears to have secondaries or textured ejecta (sign of freshness), but is mostly infilled. It also has … Continue reading

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THEMIS: Crater rim gullies in Terra Sirenum

THEMIS Image of the Day, November 6, 2018. Numerous gullies dissect the northern rim of this unnamed crater in Terra Sirenum. The inside of the north rim faces away from the Sun and is more deeply gullied than the Sun-facing … Continue reading

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THEMIS: Soft-featured craters in Arcadia Planitia

THEMIS Image of the Day, October 19, 2018. This false-color VIS image shows some of the plains and craters located in Arcadia Planitia. The soft-looking features in the impact craters indicate ground ice at shallow depths below the surface. In … Continue reading

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HiRISE: Colorful impact

Some regions of Mars are not very colorful, but we can be surprised by local features. This image of an impact crater in the south Syrtis Major region was acquired as a “ride-along” with a CRISM observation, which targeted this … Continue reading

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THEMIS: Lava flows on plains east of Hecates Tholus

THEMIS image of the Day, October 16, 2018. This VIS image shows the plains to the east of Hecates Tholus. In this false-color view lie several lava flow fronts and scattered impact craters. The THEMIS VIS camera contains 5 filters. … Continue reading

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HiRISE: Fresh impact near Airy Crater

A fresh impact near Airy Crater. By “fresh,” we are speaking in geological terms, of course, as this impact did not occur in our lifetimes. But we can still see the rim and the ejecta around the crater fairly well. This … Continue reading

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HiRISE: Crater on north polar layered deposits

Crater on north polar layered deposits. Even at HiRISE resolution, it’s difficult to spot in black and white, but the color enhanced picture at full resolution tells a different story. Beautiful Mars series. [More at links]

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THEMIS: Impact crater on volcanic plains

THEMIS Image of the Day, August 23, 2018. This VIS image shows an unnamed crater located northeast of Ascraeus Mons, on the volcanic plains of the Tharsis region. The rim has several concentric ridges. There are multiple layers of ejecta, … Continue reading

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HiRISE: Impact crater on the Kasei Valles floor

An impact crater on the floor of Kasei Valles. This impact crater is on platy-ridged material on the floor of Kasei Valles. We might be able to distinguish between lava and mud in the area. Beautiful Mars series. [More at links]

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THEMIS: Not quite round

THEMIS Image of the Day, July 23, 2018. This VIS image shows an unnamed crater in Noachis Terra. The crater is relatively young, with several different structures on the floor and rim still visible. The inner rim of the crater … Continue reading

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