Tag Archives: crater ejecta

HiRISE: Ejecta and possible bedrock on a crater floor in Aonia Terra

Ejecta and possible bedrock on a crater floor in Aonia Terra. This is just to the east of an impact crater that is almost dead center within a much larger impact crater. (249 km above the surface; black and white … Continue reading

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HiRISE: Diverse minerals in crater ejecta

Diverse minerals in crater ejecta. The CRISM instrument on MRO (a spectrometer) show blocks of diverse composition here in the ejecta of a 15-kilometer diameter complex crater. HiRISE coverage can reveal textures and small-scale color variations. Beautiful Mars series.

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HiRISE: Crater ejecta along Durius Valles

Crater ejecta along Durius Valles. Beautiful Mars series.

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THEMIS: Scoured ejecta from Bacolor crater impact

THEMIS Image of the Day, July 19, 2017. Today’s VIS image shows some of the ejecta from Bacolor Crater in Utopia Planitia. There are several layers of ejecta visible in the image. The crater itself is just off the image … Continue reading

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THEMIS: Terra Cimmeria impact-crater ejecta

THEMIS Image of the Day, July 18, 2017. This VIS image shows an unnamed crater in Terra Cimmeria. Note how the ejecta overlays the surrounding terrain, radial to the crater. What produces the two ejecta fields that blanket the ground, … Continue reading

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THEMIS: Crater impact sequence

THEMIS Image of the Day, July 17, 2017.  Today’s VIS image shows unnamed craters in Terra Sirenum. The ejected debris from both impacts have overlapped. The debris from the smaller crater at bottom lies on top, showing that the impact … Continue reading

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HiRISE: Mars and the amazing Technicolor ejecta blanket

A close-up image shows the exposed bedrock of an ejecta blanket of an unnamed crater in the Mare Serpentis region of Mars. Ejecta, when exposed, are truly an eye-opening feature, as they reveal the sometimes exotic subsurface, and materials created … Continue reading

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HiRISE: Escape from Mars!

This image shows one of millions of small (10s of meters in diameter) craters and their ejecta material that dot the Elysium Planitia region of Mars. The small craters were likely formed when high-speed blocks of rock were thrown out … Continue reading

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THEMIS: Aonia Terra crater ejecta in false color

THEMIS Image of the Day, April 26, 2017. Today’s false color image shows several small craters in Aonia Terra. The false colors help show differences in the patterns of debris ejected in the impacts. The THEMIS VIS camera contains 5 … 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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