Tag Archives: craters

THEMIS: Daedalia Planum crater

THEMIS Image of the Day, July 30, 2018. This VIS image shows part of an unnamed crater on the northwest margin of Daedaia Planum. Lava flows are visible around the crater rim. The interior of the crater has been filled … Continue reading

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HiRISE: Cored island

Cored island. This channel may have been used by both lava and water. One of the processes produced a crater-cored island and later, the downstream side was eroded away, leaving knobs and an inverted streamlined form. Beautiful Mars series. [More … Continue reading

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HiRISE: Lava-coated craters

Lava-coated craters. The larger crater looks normal–dimpled depression with a protruding rim barely covered by lava which later deflated. The smaller depression looks deeper and steeper-sided, and the rim does not protrude, so it is probably below the level of … Continue reading

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THEMIS: Impact blast scars on crater rim

THEMIS Image of the Day, June 12, 2018. Today’s VIS image shows part of a crater located north of Hecates Tholus. The radial grooves in the ejecta blanket are still visible around the crater rim. There is also likely blast … Continue reading

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HiRISE: Clays in a grouping of small craters

Clays in a grouping of small craters. Beautiful Mars series. [More at links]

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THEMIS: Old craters in an even older land

THEMIS Image of the Day, April 16, 2018. This VIS image shows several craters. The interior of the central one has retained much of the original topography, including the central peak. The floor has not been smoothed by deposits of … Continue reading

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HiRISE: Crater watchin’ in northeast Syrtis Major

Crater watchin’ in northeast Syrtis Major region. The dunes within the crater are fascinating for their cell shapes, caused by the wind. Beautiful Mars series.

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HiRISE: Wonderfully eye-like

Wonderfully eye-like. Beautiful Mars series.

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HiRISE: Mid-latitude crater with a spot in the middle

A mid-latitude crater with a spot in the middle. From orbit, the spot looks black, but we can see in the enhanced color closeup that it’s darker (basaltic?) material on top of the lighter dunes. Beautiful Mars series.

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THEMIS: Yuty Crater ejecta

THEMIS Image of the Day, March 26, 2018. Off the image to the right is Yuty Crater, located between Simud and Tiu Valles. The crater ejcta forms the large lobes along the right side of this VIS image. This type … Continue reading

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