InSight: Sunrise and sunset on Mars

PIA23201_hiresNASA’s InSight lander captured a series of sunrise and sunset images.

A camera on the spacecraft’s robotic arm snapped the photos on April 24 and 25, the 145th Martian day, or sol, of the mission. In local Mars time, the shots were taken starting around 5:30 a.m. and then again starting around 6:30 p.m. As a bonus, a camera under the lander’s deck also caught clouds drifting across the Martian sky at sunset.

These images are available as both “raw” and color-corrected versions. It’s easier to see some details in the raw versions, but the latter more accurately show the images as the human eye would see them. Much farther from Mars than it is from Earth, the Sun appears only about two-thirds the size that it does when viewed from Earth.

This is actually the second time InSight has captured these daily events: The camera took practice shots on March 2 and 10. “It’s been a tradition for Mars missions to capture sunrises and sunsets,” said Justin Maki, InSight science team co-investigator and imaging lead at NASA’s Jet Propulsion Laboratory in Pasadena, California. “With many of our primary imaging tasks complete, we decided to capture the sunrise and sunset as seen from another world.”  [More at link]

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MARCI weather report, April 22-28, 2019

MARCI-April-27-2019For the past week on Mars, numerous local-scale dust storms of varied size occurred along the southern highlands — below 50° S. latitude. Looking to the northern hemisphere, dust-lifting activity was more sporadic. A couple of arcuate (bow-shaped) dust storms were spotted over the plains of Acidalia and Utopia near the beginning of the week. Poleward of this activity, the edge of the seasonal north polar ice cap continued its gradual retreat. [More at link, including video]

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Curiosity update: Confirmation of another taste of the ‘Clay-Bearing Unit,’ as good as the first?

NRB_609313639EDR_F0751398NCAM00309M_-br2Sols 2390-93, April 26, 2019, update by MSL scientist Lucy Thompson: We started planning in eager anticipation of the preliminary results from our downlink and whether the CheMin X-ray diffraction spectrometer received enough sample of the “Kilmarie” drill sample to successfully complete a first night of analysis.

Less than 40 minutes after downlink, we got confirmation from the CheMin team that they did indeed receive enough material. This meant that we could proceed with the two highest priority activities in the plan; the second night of CheMin analysis of the Kilmarie drill sample, and a SAM preconditioning activity in preparation for delivery of sample for a SAM Evolved Gas Analysis (EGA) experiment in the coming week’s plan.

The CheMin instrument informs us of the mineralogy of the sample, which can give us clues about the source of the rock sample, the conditions under which it formed and any subsequent alteration events. It will be interesting to compare the mineralogy of Kilmarie with the nearby “Aberlady” drill hole…. [More at link]

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THEMIS: Angustus Labyrinthus, the ‘Inca City’

Angustus Labyrinthus (THEMIS_IOTD_20190501)THEMIS Image of the Day, May 1, 2019. Angustus Labyrinthus is a unique region near the south polar cap. The squares formed by intersecting ridges earned the feature the informal name of the Inca City when it was discovered in Mariner 9 images in 1972.

The linear ridges are believed to have formed by volcanic and tectonic forces, where magma filled fractures in the subsurface and then erosion revealed the magmatic material.

Explore more THEMIS Images of the Day by geological subject.

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HiRISE: Majestic slopes and ridges

ESP_054821_1790Majestic slopes and ridges. The objective of this observation is to take a closer look at recurring slope lineae-like features and confirm if they are actually present. Additionally, we previously had no HiRISE coverage of this particular spot. The sheer beauty of the features in this picture is breathtaking.

HiRISE Picture of the Day archive. [More at links]

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THEMIS: South polar outliers

South polar outliers (THEMIS_IOTD_20190426)THEMIS Image of the Day, April 26, 2019. This VIS image is located near the south polar cap and exhibits the same layering of ice and dust.

Outliers are regions that were once part of a larger regional feature but over the course of time processes have isolated them from the main feature.

Explore more THEMIS Images of the Day by geological subject.

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Mars 2020 wired for sound

PIA23160Engineers and technicians working on NASA’s Mars 2020 mission prepare spacecraft components for acoustic testing in the Environmental Test Facility at NASA’s Jet Propulsion Laboratory in Pasadena, California. The spacecraft is being tested in the same configuration it will be in when sitting atop the Atlas rocket that will launch the latest rover towards Mars in July 2020. [More at link]

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Curiosity: A shiny rock or two

2387-rmiSol 2387, April 24, 2019. Curiosity’s Remote Micro-Imager shot two frames of a rock  — or is it two of them? — with a shiny surface. Click the image to enlarge it.

Sol 2387 raw images (from all cameras).

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HiRISE: Megadunes in Hyperborei Cavi

ESP_054819_2620Megadunes in Hyperborei Cavi. A cavus is an irregular steep-sided depression usually in arrays or clusters. Plus: MEGADUNES!

HiRISE Picture of the Day archive. [More at links]

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THEMIS: Layers in Cavi Angusti

Cavi Angusti (THEMIS_IOTD_20190425)THEMIS Image of the Day, April 25, 2019. Cavi Angusti is located near the south polar cap and consists of large irregular steep-sided depressions termed cavi. Layering is visible within the large cavi at the top of the image.

Explore more THEMIS Images of the Day by geological subject.

 

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