Author Archives: rburnham

THEMIS: Asimov Crater rim and infill

THEMIS Image of the Day, December 12, 2018. Located in Noachis Terra, Asimov Crater has an unusual crater floor morphology. At some point after the crater formed, the interior was filled by materials that reached almost to the top of … Continue reading

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Curiosity update: Hunt for red Jura continues

Sol 2256, December 10, 2018, update by MSL scientist Rachel Kronyak: After a successful weekend of activities and driving, we were hopeful that we would wake up on Sol 2256 and be ready for contact science and drilling. Unfortunately, Mars … Continue reading

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HiRISE: The enduring charm of spiders

Araneiform terrain (colloquially: spider-like terrain) is located in the south polar region of Mars and evolves in appearance over the spring and summer. In the season shown here, the thin bright lines on the surface (the spider legs) are troughs … Continue reading

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THEMIS: Rim of two craters

THEMIS Image of the Day, December 11, 2018. In the center of this VIS image is a crater rim, which is shared by two craters. The crater with the deeper floor is at the bottom of the image, and this … Continue reading

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Curiosity update: Thinking on our wheels

Sol 2254-55, December 10, 2018, update by MSL scientist Mariah Baker: Today was one of those planning days when you realize the importance of being able to adapt quickly and think on your feet (i.e., wheels) when operating a rover … Continue reading

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Curiosity: Skyline south

Sol 2255, December 10, 2018. Four Navcam frames trace the skyline toward the south. Click the image to enlarge it. Sol 2255 raw images (from all cameras).

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HiRISE: Swiss cheese on a red planet

The Martian south polar cap is a layer of carbon dioxide ice, full of pits that make it look like Swiss cheese. The pits form when the Sun heats the ice and makes it sublimate (transform from a solid to … Continue reading

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THEMIS: Gullies in Noachis Terra

THEMIS Image of the Day, December 10, 2018. Numerous channels, also called gullies, dissect the rim of this unnamed crater in Noachis Terra. (Note that the lighting in this image comes from the lower right.) At upper right lies a … Continue reading

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HiRISE: Layering and faulting in layered deposits in Candor Chasma

Layering and faulting in layered deposits in Candor Chasma. This observation was a last minute one done as nadir-only, meaning when the camera is pointing straight down at the surface, as opposed to an angle when we want to create … Continue reading

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Curiosity: Looking for a Jura drill site

Sol 2252, December 7, 2018. Five Navcam frames show the scene to the east and southeast of Curiosity. The rover team is looking for a good spot to try to drill into the Jura member of Vera Rubin Ridge. Click … Continue reading

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