Weather at Gale Crater

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Curiosity update: Science and good times at Rock Hall

2262MR0120940100106573D01_DXXX-br2Sol 2264, December 18, 2018, update by MSL scientist Kristen Bennett: We are still very excited and happy that the final drill hole, “Rock Hall,” on Vera Rubin Ridge was successful over the weekend. Now we get to analyze the drilled sample with rover instruments. We are planning one sol today, and the big event will be delivering some of the Rock Hall sample to the CheMin instrument.

Additionally, ChemCam LIBS is planned to target the drill hole to understand the chemistry, and a Mastcam 360-degree mosaic is planned to document the surroundings around the drill hole…. [More at link]

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THEMIS: Faulting and collapse in Sirenum Fossae

Faulting and collapse in Sirenum Fossae (THEMIS_IOTD_20181219)THEMIS Image of the Day, December 19, 2018. The linear depressions in this VIS image are part of Sirenum Fossae.

These depressions are called graben, which form by the down drop of material between two parallel faults. The faults are caused by tectonic stresses in the region.

See more THEMIS Images of the Day by geological subject.

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Curiosity: Scoping out Lairig Ghru

2262-rmiSol 2262, December 16, 2018. A 1o x 2 raster pattern of Remote Micro-Imager (RMI) frames makes a composite picture of Lairig Ghru, a distant target on the slopes of Mt. Sharp. Click the image (4 MB) to enlarge it.

Sol 2262 raw images (from all cameras).

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InSight: Building a Mars Rock Garden

22226_PIA22744-webNASA’s InSight lander is due to set its first science instrument on Mars in the coming days. But engineers here on Earth already saw it happen — last week.

Like NASA’s Curiosity rover, InSight has a full-scale working model at the agency’s Jet Propulsion Laboratory in Pasadena, California. This sister lander, aptly named ForeSight, lets the team test all operations before they happen on Mars.

To practice how InSight will place its instruments, JPL engineers built a Martian rock garden modeled on images from the spacecraft’s cameras. The team raked, shoveled and patted down a bed of crushed garnet intended to simulate Martian sand. They call the shaping of this gravel-like material “Marsforming.” [More at link]

[Ed. note: The above is a 360° video.]

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HiRISE: Chryse Chaos

tumblr_pjqq64sxfe1rlz4gso2_1280Chryse Chaos. In planetary nomenclature, the term chaos means “distinctive area of broken terrain.” The general morphology of chaos is steep-sided mesas in close proximity. The interconnected channel forms erode, and mesas are created by erosion of the bounding channels.

Beautiful Mars series. [More at links]

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Curiosity update: We have sample!

CR0_598303026PRC_F0731206CCAM02260L1-br2Sol 2263, December 18, 2018, update by MSL scientist Dawn Sumner: At the end of last week, the team made the call to drill the rock “Rock Hall,” and Curiosity had no problems drilling the target. The science team had been worried that this rock type, red Jura, might be particularly hard based on the observation that it commonly caps the highs on Vera Rubin Ridge. However, the drill reached its full commanded depth on our first attempt, and we are celebrating!

Today, the team planned a portioning test to make sure that there is sample powder in the drill and that it comes out in reliable volumes when Curiosity shakes its arm. This is the next step before delivering sample to the CheMin instrument for mineralogical analysis. The rover planners included an extra portioning activity consisting of sample delivery to one of SAM’s sample inlets with the cover closed. Based on prior SAM data… [More at link]

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THEMIS: Clouds on a summer’s day

Clouds on a summer day (THEMIS_IOTD_20181218)THEMIS Image of the Day, December 18, 2018. During southern summer, clouds are a common occurrence over the south polar cap.

These dust clouds started as small dust devils visible near the top right corner of this VIS image.

See more THEMIS Images of the Day by geological subject.

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HiRISE: In Tikhonravov Crater

tumblr_pjqljw3K0G1rlz4gso1_1280In Tikhonravov Crater. Tikhonravov is 386 kilometers in diameter and was named after Mikhail Tikhonravov, a Russian rocket scientist. It’s thought to have once held a giant lake that drained into the 4,500-kilometer long Naktong-Scamander-Mamers lake-chain system.

Beautiful Mars series. [More at links]

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Curiosity: Drilling down on Rock Hall

FLA_598206656EDR_S0731206FHAZ00222M_CR0_598302986PRC_F0731206CCAM02260L1-br2Sols 2261-62, December 15-16, 2018. Curiosity’s drill sank into the slab of red Jura rock dubbed Rock Hall, excavating a nice pile of tailings. Click either image to enlarge it.

Sol 2262 raw images (from all cameras).

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