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Sols 4304-4006: 12 Years, 42 Drill Holes, and Now… 1 Million ChemCam Shots!
In celebration of ChemCam’s milestone, here is a stunning image from its remote micro imager, showing details in the landscape far away. This image was taken by Chemistry & Camera (ChemCam) onboard NASA’s Mars rover Curiosity on Sol 4302 — Martian day 4,302 of the Mars Science Laboratory mission — on Sept. 12, 2024, at 09:20:51 UTC. NASA/JPL-Caltech Earth planning date: Friday, Sept. 13, 2024
Today, I need to talk about ChemCam, our laser and imaging instrument on the top of Curiosity’s mast. It one of the instruments in the “head” that gives Curiosity that cute look as if it were looking around tilting its head down to the rocks at the rover’s wheels. On Monday, 19th August the ChemCam team at CNES in France planned the 1 millionth shot and Curiosity executed it on the target Royce Lake on sol 4281 on Mars. Even as an Earth scientist used to really big numbers, this is a huge number that took me a while to fully comprehend. 1 000 000 shots! Congratulations, ChemCam, our champion for getting chemistry from a distance – and high-resolution images, too. If you are now curious how Curiosity’s ChemCam instrument works, here is the NASA fact sheet. And, of course, the team is celebrating, which is expressed by those two press releases, one from CNES in France and one from Los Alamos National Laboratory, the two institutions who collaborated to develop and build ChemCam and are now running the instrument for over 12 years! And the PI, Dr Nina Lanza from Los Alamos informs me that the first milestone – 10000 shots was reached as early as Sol 42, which was the sol the DAN instrument used its active mode for the first time. But before I am getting melancholic, let’s talk about today’s plan!
The drive ended fairly high up in the terrain, and that means we see a lot of the interesting features in the channel and generally around us. So, we are on a spot a human hiker would probably put the backpack down, take the water bottle out and sit down with a snack to enjoy the view from a nice high point in the landscape. Well, no such pleasures for Curiosity – and I am pretty sure sugar, which we humans love so much, wouldn’t be appreciated by rover gears anyway. So, let’s just take in the views! And that keeps Mastcam busy taking full advantage of our current vantage point. We have a terrain with lots of variety in front of us, blocks, boulders, flatter areas and the walls are layered, beautiful geology. Overall there are 11 Mastcam observations in the plan adding up to just about 100 individual frames, not counting those taken in the context of atmospheric observations, which are of course also in the plan. The biggest mosaics are on the targets “Western Deposit,” “Balloon Dome,” and “Coral Meadow.” Some smaller documentation images are on the targets “Wales Lake,” “Gnat Meadow,” and “Pig Chute.”
ChemCam didn’t have long to dwell on its milestone, as it’s busy again today. Of course, it will join Mastcam in taking advantage of our vantage point, taking three remote micro imager images on the landscape around us. LIBS chemistry investigations are targeting “Wales Lake,” “Gnat Meadow,” and “Pig Chute.” APXS is investigating two targets, “College Rock” and “Wales Lake,” which will also come with MAHLI documentation. With all those investigations together, we’ll be able to document the chemistry of many targets around us. There is such a rich variety of dark and light toned rocks, and with so much variety everywhere, it’s hard to choose and the team is excited about the three targeted sols … and planning over 4 hours of science over the weekend!
The next drive is planned to go to an area where there is a step in the landscape. Geologists love those steps as they give insights into the layers below the immediate surface. If you have read the word ‘outcrop’ here, then that’s what that means: access to below the surface. But there are also other interesting features in the area, hence we will certainly have an interesting workspace to look at! But getting there will not be easy as the terrain is very complex, so we cannot do it in just one drive. I think there is a rule of thumb here: the more excited the geo-team gets, the more skills our drivers need. Geologists just love rocks, but of course, no one likes driving offroad in a really rocky terrain – no roads on Mars. And right now, our excellent engineers have an extra complication to think about: they need to take extra care where and how to park so Curiosity can actually communicate with Earth. Why? Well, we are in a canyon, and those of you liking to hike, know what canyons mean for cell phone signals… yes, there isn’t much coverage, and that’s the same for Curiosity’s antenna. This new NASA video has more information and insights into the planning room, too! So, we’ll drive halfway to where we want to be but I am sure there will be interesting targets in the new workspace, the area is just so, so complex, fascinating and rich!
And that’s after Mars for you, after 12 years, 42 drill holes, and now 1 Million ChemCam shots. Go Curiosity go!!!
Written by Susanne Schwenzer, Planetary Geologist at The Open University
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Last Updated Sep 13, 2024 Related Terms
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By NASA
4 Min Read NASA’s Artemis II Crew Uses Iceland Terrain for Lunar Training
Credits:
NASA/Trevor Graff/Robert Markowitz Black and gray sediment stretches as far as the eye can see. Boulders sit on top of ground devoid of vegetation. Humans appear almost miniature in scale against a swath of shadowy mountains. At first glance, it seems a perfect scene from an excursion on the Moon’s surface … except the people are in hiking gear, not spacesuits.
Iceland has served as a lunar stand-in for training NASA astronauts since the days of the Apollo missions, and this summer the Artemis II crew took its place in that long history. NASA astronauts Reid Wiseman, Victor Glover, Christina Koch, and CSA (Canadian Space Agency) astronaut Jeremy Hansen, along with their backups, NASA astronaut Andre Douglas and CSA astronaut Jenni Gibbons, joined geology experts for field training on the Nordic island.
NASA astronaut and Artemis II mission specialist Christina Koch stands in the desolate landscape of Iceland during a geology field training course. NASA/Robert Markowitz NASA/Robert Markowitz “Apollo astronauts said Iceland was one of the most lunar-like training locations that they went to in their training,” said Cindy Evans, Artemis geology training lead at NASA’s Johnson Space Center in Houston. “It has lunar-like planetary processes – in this case, volcanism. It has the landscape; it looks like the Moon. And it has the scale of features astronauts will both be observing and exploring on the Moon.”
Iceland’s geology, like the Moon’s, includes rocks called basalts and breccias. Basalts are dark, fine-grained, iron-rich rocks that form when volcanic magma cools and crystalizes quickly. In Iceland, basalt lavas form from volcanoes and deep fissures. On the Moon, basalts can form from both volcanoes and lava pooling in impact basins. Breccias are angular fragments of rock that are fused together to create new rocks. In Iceland, volcanic breccias are formed from explosive volcanic eruptions and on the Moon, impact breccias are formed from meteoroids impacting the lunar surface.
Apollo astronauts said Iceland was one of the most lunar-like training locations that they went to in their training.
Cindy Evans
Artemis Geology Training Lead
Along with exploring the geology of Iceland, the astronauts practiced navigation and expeditionary skills to prepare them for living and working together, and gave feedback to instructors, who used this as an opportunity to hone their instruction and identify sites for future Artemis crew training. They also put tools to the test, learning to use hammers, scoops, and chisels to collect rock samples.
Caption: The Artemis II crew, NASA astronauts Reid Wiseman, Victor Glover, Christina Koch, and Canadian Space Agency (CSA) astronaut Jeremy Hansen, and backup crew members NASA astronaut Andre Douglas and CSA astronaut Jenni Gibbons trek across the Icelandic landscape during their field geology training. NASA/Robert Markowitz “The tools we used during the Apollo missions haven’t changed that much for what we’re planning for the Artemis missions,” said Trevor Graff, exploration geologist and the hardware and testing lead on the Artemis science team at NASA Johnson. “Traditionally, a geologist goes out with just standard tool sets of things like rock hammers and scoops or shovels to sample the world around them, both on the surface and subsurface.”
The Artemis tools have a bit of a twist from traditional terrestrial geology tools, though. Engineers must take into consideration limited mass availability during launch, how easy it is to use a tool while wearing pressurized gloves, and how to ensure the pristine nature of the lunar samples is preserved for study back on Earth.
There’s really transformational science that we can learn by getting boots back on the Moon, getting samples back, and being able to do field geology with trained astronauts on the surface.
Angela Garcia
Exploration Geologist and Artemis II Science Officer
Caption: Angela Garcia, Artemis II science officer and exploration geologist, demonstrates how to use a rock hammer and chisel to dislodge a rock sample from a large boulder during the Artemis II field geology training in Iceland. NASA/Robert Markowitz “There’s really transformational science that we can learn by getting boots back on the Moon, getting samples back, and being able to do field geology with trained astronauts on the surface,” said Angela Garcia, exploration geologist and an Artemis II science officer at NASA Johnson.
The Artemis II test flight will be NASA’s first mission with crew under Artemis and will pave the way to land the first woman, first person of color, and first international partner astronaut on the Moon on future missions. The crew will travel approximately 4,600 miles beyond the far side of the Moon. While the Artemis II astronauts will not land on the surface of the Moon, the geology fundamentals they develop during field training will be critical to meeting the science objectives of their mission.
These objectives include visually studying a list of surface features, such as craters, from orbit. Astronauts will snap photos of the features, and describe their color, reflectivity, and texture — details that can reveal their geologic history.
The Artemis II crew astronauts, their backups, and the geology training field team pose in a valley in Iceland’s Vatnajökull national park. From front left: Angela Garcia, Jacob Richardson, Cindy Evans, Jenni Gibbons, Jacki Mahaffey, back row from left: Jeremy Hansen, John Ramsey, Reid Wiseman, Ron Spencer, Scott Wray, Kelsey Young, Patrick Whelley, Christina Koch, Andre Douglas, Jacki Kagey, Victor Glover, Rick Rochelle (NOLS), Trevor Graff. “Having humans hold the camera during a lunar pass and describe what they’re seeing in language that scientists can understand is a boon for science,” said Kelsey Young, lunar science lead for Artemis II and Artemis II science officer at NASA’s Goddard Space Flight Center in Greenbelt, Maryland. “In large part, that’s what we’re training astronauts to do when we take them to these Moon-like environments on Earth.”
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Last Updated Sep 13, 2024 Related Terms
Analog Field Testing Andre Douglas Apollo Artemis Astronauts Christina H. Koch Earth’s Moon G. Reid Wiseman Humans in Space Missions The Solar System Victor J. Glover Explore More
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