Tag Archives: impacts

HRSC: Crater triplets

At first glance this scene may seem nothing out of the ordinary, but the large elongated crater marks the imprint of an impacting body that may have broken into three before it hit Mars. The images were acquired by ESA’s … Continue reading

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HiRISE: New impact site in southern mid-latitudes

Over 500 new impact events have been detected from before-and-after images, mostly from MRO’s Context Camera, with a HiRISE followup. Those new craters that expose shallow ice are of special interest, especially at latitudes where not previously detected, to better … Continue reading

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HiRISE: Is that an impact crater?

This image was acquired to take a closer look at a circular feature that might be an impact structure on the South Polar layered deposits. Measuring the sizes and frequency of impact craters provides a constraint on the age of … Continue reading

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Opportunity: Geologically fresh crater

Sol 4680, March 24, 2017. A relatively fresh crater from a small meteorite impact lies out on the sands of Meridiani, just west of the Endeavour Crater rim. (False color Pancam  reconstruction by Holger Isenberg.) For a larger version, click … Continue reading

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HiRISE: New crater on a dusty slope

This image shows a new impact site originally detected by the Context Camera onboard MRO. The crater is on a dusty slope, which also has several dark slope streaks due to dust avalanches. A previous impact at another place on … Continue reading

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HiRISE: Old features and new

This image covers a portion of a typical impact crater in Terra Sirenum at about 40 degrees south latitude on Mars. At the top of the image, outside the crater rim, there is a mid-latitude mantle, rough in places where … Continue reading

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HiRISE: Dragonfly-shaped crater

The broader scene for this image is the fluidized ejecta from Bakhuysen Crater to the southwest, but there’s something very interesting going on here on a much smaller scale. A small impact crater, about 25 meters in diameter, with a … Continue reading

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HiRISE: Unlocking an impact crater’s clues

Mars is a dynamic planet. HiRISE has witnessed many surface changes over the past ten years, including hundreds of new craters formed by ongoing impacts. Most of these impacts are likely caused by asteroids that have strayed into collision courses … Continue reading

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HiRISE: 9-km impact crater and its central peak

This image reveals an impact crater, nine kilometers in diameter, with a central peak. Impact craters of various sizes and ages can be found across the Martian surface. Each impact crater on Mars possesses a unique origin and composition, which … Continue reading

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HiRISE: Hard knocks in Tyrrhena Terra

This enhanced-color image shows a small portion of a dark crater floor in the Tyrrhena Terra region of Mars. This is largely ancient hard bedrock that has been cratered by numerous impacts over the eons. Two other interesting geological features … Continue reading

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