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Curiosity Navigation Curiosity Home Mission Overview Where is Curiosity? Mission Updates Science Overview Instruments Highlights Exploration Goals News and Features Multimedia Curiosity Raw Images Images Videos Audio Mosaics More Resources Mars Missions Mars Sample Return Mars Perseverance Rover Mars Curiosity Rover MAVEN Mars Reconnaissance Orbiter Mars Odyssey More Mars Missions The Solar System The Sun Mercury Venus Earth The Moon Mars Jupiter Saturn Uranus Neptune Pluto & Dwarf Planets Asteroids, Comets & Meteors The Kuiper Belt The Oort Cloud 4 min read
Sols 4398-4401: Holidays Ahead, Rocks Under the Wheels
NASA’s Mars rover Curiosity acquired this image using its Left Navigation Camera on Dec. 17, 2024, at 23:24:13 UTC — Sol 4396, or Martian day 4,396, or the Mars Science Laboratory mission. NASA/JPL-Caltech Earth planning date: Wednesday, Dec. 18, 2024
It’s almost holiday time, and preparations are going ahead on Earth and Mars! For myself that means having a packed suitcase sitting behind me to go on my holiday travels tomorrow morning. For Curiosity that means looking forward to a long semi-rest, as we will not do our usual planning for the geology and mineralogy, but will still be monitoring the atmospheric conditions throughout. Today should have been a normal planning day with lots of contact and remote science. Well, Mars had other ideas.
The regular readers of this blog know that we are driving through quite difficult terrain. The image above gives a good impression on what the rover is dealing with: lots of rocks embedded in sand. I think even hiking would be quite difficult there, let alone driving autonomously. Curiosity, thanks to our excellent rover drivers, makes it successfully most of the time, but here and there Mars just doesn’t play nice. Thus, the rover stopped after 14 meters (about 46 feet) of a planned much longer drive. One of the wheels had caught a low spot between two rocks, and — safety first — the rover stopped and waited for our assessment. The rover drivers found no major problem, as it’s just the middle wheel that hit a bit of a rough patch, and driving can continue in this plan. But better safe than sorry, especially on another planet where there are no tow trucks to get us out of difficulty!
There was, however, quite a bit of discussion before we decided that course of action. Not because of the wheels themselves, but because the rover also stands in a position where it can only communicate directly with Earth in limited ways as the antenna is not facing the expected direction after the sudden stop. Of course, we still have the orbiters to talk to our rover, so we know it’s all fine. And — all things are three — this all happened on the penultimate plan of the year! Friday we’ll be planning a large set of sols that the rover will be executing on its own on Mars, monitoring the atmosphere and taking regular images of its surroundings, while the Earth-based team enjoys the well-deserved break. We really want to make sure to have everything going right on a day like today, so we all can enjoy the holidays without worrying about the rover!
With today being the last day of normal science planning, we had lots of ideas, but had to keep the arm stowed. The drive fault also meant that we had to forego arm movements, as the rover was sitting on a few rocks, and one of the wheels in that little depression that stopped us, all in ways that meant that a shift of rover weight (such as occurs when we move the arm) could make the rover move. Avoiding this situation, the team kept the arm stowed and focused on remote observations today. ChemCam observes a vein target called “Monrovia Peak” and takes remote images on the target “Jawbone Canyon” and up Mount Sharp toward the yardang unit. Mastcam looks at the target “Circle X Ranch” to investigate the material around the rocks embedded in the sand, looks at “Anacapa Island,” which is a vein target, “Channel Islands,” which is an aeolian ripple, and target “Gould Mesa,” which gets the team especially excited as this is the first glimpse of the so-called boxwork structures, which we saw from orbit even before Curiosity landed. Finally, we drive away from the spot that held us up today. Let’s hope Mars has read the script this time!
For the looooong break, we are planning autonomous and remote investigations only, and this starts before Friday’s planning, so that we know all is ok! Thus, the other three sols in today’s planning have Aegis, the automated ChemCam LIBS observation, a Mastcam 360° mosaic, and many, many atmospheric observations. It’s going to be a feast for DAN, REMS, and generally the atmospheric science on Mars, while here on Earth we enjoy the treats of the season. The Curiosity team hopes you do, too. See you in 2025!
Written by Susanne Schwenzer, Planetary Geologist at The Open University
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Last Updated Dec 20, 2024 Related Terms
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Curiosity Navigation Curiosity Home Mission Overview Where is Curiosity? Mission Updates Science Overview Instruments Highlights Exploration Goals News and Features Multimedia Curiosity Raw Images Images Videos Audio Mosaics More Resources Mars Missions Mars Sample Return Mars Perseverance Rover Mars Curiosity Rover MAVEN Mars Reconnaissance Orbiter Mars Odyssey More Mars Missions The Solar System The Sun Mercury Venus Earth The Moon Mars Jupiter Saturn Uranus Neptune Pluto & Dwarf Planets Asteroids, Comets & Meteors The Kuiper Belt The Oort Cloud 2 min read
Sols 4393-4395: Weekend Work at the Base of Texoli Butte
Caption: NASA’s Mars rover Curiosity acquired this image using its Left Navigation Camera on Dec. 12, 2024, at 23:15:47 UTC — sol 4391, or Martian day 4,391, of the Mars Science Laboratory mission. NASA/JPL-Caltech Earth planning date: Friday, Dec. 13, 2024
Curiosity continues to make great progress over the Mount Sharp bedrock and will spend the weekend investigating the northern base of the “Texoli” butte. The science team back on Earth enjoyed taking in the beautiful views of nearby “Wilkerson” butte and “Gould Mesa” while digging into the workspace in front of us to create a hefty to-do list for our roving geologist on Mars.
The rocks at the rover’s wheels today consisted of dusty, pale-colored bedrock that had a range of textures. We used the dust removal tool (DRT), MAHLI, and APXS instruments to characterize lighter, smooth bedrock at “Calabasas Peak,” and slightly darker, rougher bedrock at “Triunfo Canyon.” The ChemCam team used the Laser-Induced Breakdown Spectroscopy (LIBS) to analyze the composition of the rougher bedrock at “Chilao” and a vein that cuts through the bedrock at “Ojai,” and Mastcam provided the supporting documentation images of each target.
The Mastcam team assembled a variety of images and mosaics in the workspace and beyond. Two stereo mosaics documented the network of fractures in the bedrock at “Fern Dell” while a stereo mosaic of “Amir’s Garden” will be used to observe possible deformation in the rocks. A few single-frame images of troughs in the workspace will be used to investigate active surface processes. Further in the distance, Mastcam created a stereo mosaic of “Jawbone Canyon” to image potential aeolian ripples, and supported a ChemCam long-distance RMI image of a crater in the drive direction called “Grant Lake.” Lastly, ChemCam planned a long-distance RMI image to get a closer look at the structures within Gould Mesa.
Curiosity will drive 44 meters (about 144 feet) to the west over the weekend as we continue to close in on the intriguing boxwork structures. Lastly, the environmental group rounded out the plan with activities including cloud observations, dust-devil monitoring, and surveys of the amount of dust in the atmosphere.
Written by: Sharon Wilson Purdy, Planetary Geologist at the Smithsonian National Air and Space Museum
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Last Updated Dec 16, 2024 Related Terms
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Curiosity NavigationCuriosity HomeMission Overview Where is Curiosity? Mission Updates ScienceOverview Instruments Highlights Exploration Goals News and Features MultimediaCuriosity Raw Images Images Videos Audio Mosaics More Resources Mars MissionsMars Sample Return Mars Perseverance Rover Mars Curiosity Rover MAVEN Mars Reconnaissance Orbiter Mars Odyssey More Mars Missions The Solar SystemThe Sun Mercury Venus Earth The Moon Mars Jupiter Saturn Uranus Neptune Pluto & Dwarf Planets Asteroids, Comets & Meteors The Kuiper Belt The Oort Cloud 3 min read
Sols 4391-4392: Rounding the Bend
NASA’s Mars rover Curiosity acquired this image using its Left Navigation Camera on sol 4389 — Martian day 4,389 of the Mars Science Laboratory mission — on Dec. 10, 2024, at 21:03:54 UTC.NASA/JPL-Caltech Earth planning date: Wednesday, Dec. 11, 2024
For planning today, we have a beautiful view of the northern tip of Texoli, as seen in the image foreground. Unfortunately, the rocks that make the view so pretty also made it unsafe to unstow the arm for contact science. Instead we are doing a lot of imaging and a drive. Our primary remote science target for ChemCam LIBS and Mastcam stereo is “Backbone Trail,” a block with multiple veins, to measure the composition and orientation of the layers. We also have ChemCam RMI targets of “Wilkerson” butte and “Grant Lake” crater to the north. Mastcam is also taking several other mosaics of “Gould Mesa,” a butte that is newly in view, and some sedimentary ripple features in the “Dry Lake,” and “Jawbone Canyon” bedrock targets. And, since we are as close to the northern point of Texoli as we will get, we of course also take a Mastcam mosaic of the spectacular layered blocks there.
After a nap, we’re ready to drive! I got to plan the drive today as Mobility Rover Planner, but the complex terrain really required all of the Rover Planners on shift today. While we want to head southwest, we had to divert a bit to the north (right of the image shown) to avoid some big blocks and high tilt. The path is very constrained in order to avoid driving over some smaller pointy rocks, scraping wheels along the sides of blocks, or steering into the side of blocks that might cause the steering to fail. And we also needed to worry about our end-of-drive heading to be sure the antenna will be clear to talk to Earth for the next plan. We ended up relying on the onboard behavior to help us optimize everything by implementing a really interesting and curvy 24-meter path (about 79 feet). Finally, after the drive we are taking a sun observation to help reduce error in the rover’s onboard attitude estimate. Hopefully this drive will get us past the occlusion created by Texoli and allow us to see a long way southwest for our next series of drives.
The second sol of the plan, the untargeted observations after the drive, focuses primarily on atmospheric observations, including Mastcam solar tau, and a long series of Navcam suprahorizon and dust-devil images and movies. We also let Curiosity choose her own target using AEGIS. Can’t wait to see what she picks!
Written by Ashley Stroupe, Mission Operations Engineer at NASA’s Jet Propulsion Laboratory
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Last Updated Dec 12, 2024 Related Terms
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Sols 4389-4390: A Wealth of Ripples, Nodules and Veins
NASA’s Mars rover Curiosity captured this image showing the patches and aggregations of darker-toned material in its workspace on Dec. 8, 2024. Curiosity acquired this image using its Mast Camera (Mastcam) on sol 4387 — Martian day 4,387 of the Mars Science Laboratory mission — at 17:44:17 UTC. NASA/JPL-Caltech/MSSS Earth planning date: Monday, Dec. 9, 2024
We are continuing to edge our way around the large “Texoli” butte. Much of the bedrock we have been traversing recently looks pretty similar — paler-colored laminated bedrock — but today’s workspace had some interesting features, as did the “drive direction” image, which focuses on the future drive path.
Close to the rover, we had a wealth of fractures and darker-toned patches. The fractures or veins were too far from the rover for contact science, but ChemCam LIBS was able to target one of the more prominent ones at “Garlock Fault.” Luckily for the contact science instruments (APXS and MAHLI), the darker patches were within reach of the arm. Some of the darker patches were flatter and platy in appearance, whilst others had a more amorphous, blobby shape. Both types come with their own challenges. The flatter ones collect dust on their flat surfaces, so ideally they would be brushed with the DRT (Dust Removal Tool) before we analyze them, but they are often too fragile-looking, and we worry that some of the layers might break off or flake off. The amorphous ones have irregular surfaces, which can collect sand and dust and make getting a good placement tricky.
However, today we were able to get both APXS and MAHLI on the flattest, most dust-free looking patch at “Cerro Negro.” We will be able to compare the composition of the darker patches and the Garlock Fault vein, and hopefully tease out their relationship.
Mastcam will take a small mosaic of Garlock Fault and then a larger mosaic on crosscutting veins at “Wildwood Canyon.” This was previously imaged, but from a different angle, so getting a second image will allow us to calculate the orientations on the fractures. Further afield, the “Forest Falls” mosaic looks at an area of dark, raised vein material.
Looking at the drive direction image, the sedimentologists were very excited to see what appear to be ripple features in the rocks ahead of us, which can tell us a lot about the depositional environment. The Mastcam mosaic “Hahamongna” will image the outcrop we are driving towards (about 30 meters from today’s workspace, or 98 feet), to give context for what we see when we get there. Mastcam will take a second smaller mosaic at “Malibu Creek” midway between where we are today and where we hope to be on Wednesday.
Looking even further into our future driving path, we will obtain Mastcam and ChemCam RMI images of the top of Mount Sharp and the yardang unit. We have a bit to go before we get there of course, but we will use those images to examine structural relationships and consider the evolution of both — we can test all those theories when we get there!
We round out the plan with environmental monitoring, as always …and wait eagerly for the next workspace on Wednesday, when we will get up close to those ripples, with luck!
Written by Catherine O’Connell-Cooper, Planetary Geologist at University of New Brunswick
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Last Updated Dec 11, 2024 Related Terms
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Sols 4386-4388: Powers of Ten
NASA’s Mars rover Curiosity acquired this image using its Left Navigation Camera on sol 4384 — Martian day 4,384 of the Mars Science Laboratory mission — Dec. 5, 2024, at 19:08:43 UTC. NASA/JPL-Caltech Earth planning date: Friday, Dec. 6, 2024
We successfully arrived in our new exploration quadrangle — the Altadena quad — which is named after a town on Earth very near our own Jet Propulsion Laboratory! The names from this quad will recognize the incredible interaction between Altadena and its surrounding environs with the San Andreas and other major faults, which led to the formation of several major mountain ranges, and with the rich human history of the area. The start of our activities in the Altadena quad was fairly typical, including observations both near to and far from the rover, depending on what catches our eye across the terrain. Today’s observations were no exception, but it strikes me that they fit into fairly neat order of magnitude bins that really crystallize how far-reaching (pun intended) Curiosity’s science is.
The nearest observation is of the rover itself, with MAHLI placed around 10 centimeters (about 4 inches) from its calibration target for a series of images tracking the amount of dust clinging to the target.
One meter (about 39 inches) from the front of the rover, MAHLI and APXS planned an analysis of a small float block, “Icehouse Canyon,” that resembled rocks we saw in Gediz Vallis. MAHLI, APXS, and ChemCam teamed up to analyze the DRT target located on typical bedrock in the workspace at “Sunland,” and ChemCam rastered across one the many veins in the workspace at target “Echo Mountain.” One meter (about one yard) in back of (and underneath) the rover, DAN scheduled multiple analyses that look to provide insight into water in the subsurface.
Tens of meters (tens of yards) from the rover, our interest in recording the many veins of this area continued. Mastcam planned three mosaics covering different collections of these long, linear features, some of which are visible in the lower left corner of the image above, to support study of their orientations.
Hundreds of meters from the rover, ChemCam looked back at Gediz Vallis, planning RMI mosaics of materials on both Gediz Vallis Ridge and within Gediz Vallis itself. The mosaics add more insight to that which we gained as we traversed through Gediz Vallis as the team tries to interpret the formation of the ridge and valley. Mastcam added coverage of this same area and extended their imaging a bit farther to include a small crater, “Grant Lake,” well south of the rover.
Thousands of meters from the rover (five-eighths of a mile, and beyond), ChemCam acquired a mosaic of the wind-sculpted structures that cap Mount Sharp, known as yardangs.
Finally, gazing up into the Martian atmosphere that extends tens of thousands of meters into space (6 miles, and multiples beyond that), Navcam planned early morning and midday imaging to assess the amount of dust in the atmosphere and search for clouds and dust devils. ChemCam planned a passive sky observation to measure certain chemical compounds in the atmosphere, and REMS and RAD included their regular schedule of weather and radiation monitoring, respectively.
The weekend plan is truly science across the scales!
Written by Michelle Minitti, Planetary Geologist at Framework
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Last Updated Dec 10, 2024 Related Terms
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