HiRISE: Eastern rim of a Terra Cimmeria crater

tumblr_pj85klhfiu1rlz4gso2_1280Eastern rim of a crater in Terra Cimmeria. Beautiful Mars series. [More at links]

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Curiosity update: The hunt for red Jura

NLA_597247177EDR_F0730722NCAM00353M_-br2Sol 2252-53, December 5, 2018, update by MSL scientist Abigail Fraeman: Even though they looked promising from a few meters away, this morning’s workspace images showed us that the red Jura rocks we had hoped to drill are too fractured to drill safely. The texture of these rocks is actually fairly typical of the red Jura rocks, so finding one that is drillable may be challenging.

But we’re not giving up right away! The science and engineering teams identified another promising rock candidate just a few meters away, and we’re going to bump towards that area in today’s plan to get a closer look. As Surface Properties Scientist (SPS) today, I worked with the rover drivers to evaluate the geological properties of the terrain we will cross during this drive to ensure we won’t drive over any rover hazards… [More at link]

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InSight: Flexing the arm

PIA22871_hiresNew images from NASA’s Mars InSight lander show its robotic arm is ready to do some lifting.

With a reach of nearly 6 feet (2 meters), the arm will be used to pick up science instruments from the lander’s deck, gently setting them on the Martian surface at Elysium Planitia, the lava plain where InSight touched down on Nov. 26.

But first, the arm will use its Instrument Deployment Camera, located on its elbow, to take photos of the terrain in front of the lander. These images will help mission team members determine where to set InSight’s seismometer and heat flow probe – the only instruments ever to be robotically placed on the surface of another planet.

“Today we can see the first glimpses of our workspace,” said Bruce Banerdt, the mission’s principal investigator at NASA’s Jet Propulsion Laboratory in Pasadena, California. “By early next week, we’ll be imaging it in finer detail and creating a full mosaic.” [More at link]

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HiRISE: Layers in a crater near Phlegra Montes

tumblr_pj84lkgHGc1rlz4gso2_1280Layers in a crater near Phlegra Montes. The objective of this observation is to examine layers near the top of a crater.

Beautiful Mars series. [More at links]

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THEMIS: Halley Crater dunes

Halley Crater dunes (THEMIS_IOTD_20181206)THEMIS Image of the Day, December 6, 2018. Halley Crater is located on the western side of Argyre Planitia. Sand dunes cover part of the crater floor.

The dunes’ dark tone indicates they are free from dust. This in turn indicates that the sands are loose and actively moving under the wind.

See more THEMIS Images of the Day by geological subject.

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MARCI weather report, Nov 25-Dec 2, 2018

MARCI-December-2-2018Transient local-scale dust storms brought about dusty conditions over northern Amazonis and southern Phlegra last week. Near the end of the week, dust activity spotted over Xanthe Terra, quickly subsided and pushed a cloud of dust southward to northeast Noachis. During that time, dust-lifting activity was relatively inactive across the… [More at link, including video]

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THEMIS: Galle Crater floor features

Galle Crater (THEMIS_IOTD_20181205)THEMIS Image of the Day, December 5, 2018. This VIS image shows a small portion of the floor of Galle Crater. This large crater is located on the eastern side of Argyre Planitia.

The floor of Galle Crater contains many different features, including fluvial, glacial and aeolian derived products. The steep crater rim is toward the bottom of the image. The incised, flat-lying materials at the top of the image are probably eroded layered deposits.

See more THEMIS Images of the Day by geological subject.

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Weather update from Gale Crater

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HiRISE: Delta-like lobes in Aeolis Dorsa

tumblr_piwvbndqmM1rlz4gso2_1280Delta-like lobes in Aeolis Dorsa. Branching fluvial deposits appear similar to others at Aeolis Dorsa which have been interpreted as delta-like. With HiRISE images and elevation models we would be able to measure deposit thicknesses more accurately.

Observations like these may suggest that Aeolis Dorsa is a paleo-coastal region that may be an important site for exploration in the future.

Beautiful Mars series. [More at links]

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CRISM: Hydrated minerals of Cydonia Colles

979D Featured ImageIn this scene we observe the knobs within the northern lowlands (Acidalia Planitia) that are Fe/Mg phyllosilicate-bearing (pink-blue) and small, patchy exposures of hydrated silica (green) surrounding the knobs. Previously, phyllosilicates have only been found within impact craters in the northern lowlands, having been exhumed from the underlying Noachian crust. This finding is consistent with these knobs being the remnants of an old basement of altered materials in the lowlands similar to the highlands material. There is also hydrated silica deposited in a younger unit embaying these knobs. [More at link]

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