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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 Mars Home NASA’s Mars rover Curiosity acquired this image using its Left Navigation Camera onboard NASA’s Mars rover Curiosity on Sol 4,587 (2025-07-02 07:33:39 UTC). NASA/JPL-Caltech Written by Lucy Thompson, APXS Collaborator and Senior Research Scientist at the University of New Brunswick, Canada
Earth planning date: Wednesday, July 2, 2025
As we traverse the boxwork terrain, we are encountering a series of more resistant ridges/bedrock patches, and areas that are more rubbly and tend to form lower relief polygonal or trough-like features. We came into planning this morning in one of the trough-like features after another successful drive. The science team is interested in determining why we see these different geomorphological and erosional expressions. Is the rock that comprises the more resistant ridges and patches a different composition to the rock in the troughs and low relief areas? How do the rocks vary texturally? Might the resistant bedrock be an indicator of what we will encounter when we reach the large boxworks that we are driving towards?
We managed to find a large enough area of rock to safely brush (target – “Guapay”), after which we will place APXS and MAHLI to determine the composition and texture. ChemCam will also analyze a different rock target, “Taltal” for chemistry and texture, and we will also acquire an accompanying Mastcam documentation image. The resistant ridge that we are planning to drive towards (“Volcan Pena Blanca”) and eventually investigate will be captured in a Mastcam mosaic. ChemCam will utilize their long-distance imaging capabilities to image the “Mishe Mokwa” butte off to the southeast of our current location, which likely contains bedrock layers that we will eventually pass through as we continue our climb up Mount Sharp.
After a planned drive, taking us closer to the “Volcan Pena Blanca” ridge, MARDI will image the new terrain beneath the wheels, before we execute some atmospheric observations. Mastcam will make a tau observation to monitor dust in the atmosphere and Navcam will acquire a zenith movie. Standard DAN, RAD and REMS activities round out the plan.
For more Curiosity blog posts, visit MSL Mission Updates
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Preparations for Next Moonwalk Simulations Underway (and Underwater)
Drag your mouse or move your phone to pan around within this 360-degree view to explore the boxwork patterns on Mars that NASA’s Curiosity is investigating for the first time. The rover captured the 291 images that make up this mosaic between May 15 and May 18.
Credit: NASA/JPL-Caltech/MSSS The rover recently drilled a sample from a new region with features that could reveal whether Mars’ subsurface once provided an environment suitable for life.
New images from NASA’s Curiosity Mars rover show the first close-up views of a region scientists had previously observed only from orbit. The images and data being collected are already raising new questions about how the Martian surface was changing billions of years ago. The Red Planet once had rivers, lakes, and possibly an ocean. Although scientists aren’t sure why, its water eventually dried up and the planet transformed into the chilly desert it is today.
By the time Curiosity’s current location formed, the long-lived lakes were gone in Gale Crater, the rover’s landing area, but water was still percolating under the surface. The rover found dramatic evidence of that groundwater when it encountered crisscrossing low ridges, some just a few inches tall, arranged in what geologists call a boxwork pattern. The bedrock below these ridges likely formed when groundwater trickling through the rock left behind minerals that accumulated in those cracks and fissures, hardening and becoming cementlike. Eons of sandblasting by Martian wind wore away the rock but not the minerals, revealing networks of resistant ridges within.
NASA’s Curiosity Mars rover captured this scene while looking out across a region filled with boxwork patterns, low ridges that scientists think could have been formed by groundwater billions of years ago.NASA/JPL-Caltech/MSSS The ridges Curiosity has seen so far look a bit like a crumbling curb. The boxwork patterns stretch across miles of a layer on Mount Sharp, a 3-mile-tall (5-kilometer-tall) mountain whose foothills the rover has been climbing since 2014. Intriguingly, boxwork patterns haven’t been spotted anywhere else on the mountain, either by Curiosity or orbiters passing overhead.
“A big mystery is why the ridges were hardened into these big patterns and why only here,” said Curiosity’s project scientist, Ashwin Vasavada of NASA’s Jet Propulsion Laboratory in Southern California. “As we drive on, we’ll be studying the ridges and mineral cements to make sure our idea of how they formed is on target.”
Important to the boxwork patterns’ history is the part of the mountain where they’re found. Mount Sharp consists of multiple layers, each of which formed during different eras of ancient Martian climate. Curiosity essentially “time travels” as it ascends from the oldest to youngest layers, searching for signs of water and environments that could have supported ancient microbial life.
The rover is currently exploring a layer with an abundance of salty minerals called magnesium sulfates, which form as water dries up. Their presence here suggests this layer emerged as the climate became drier. Remarkably, the boxwork patterns show that even in the midst of this drying, water was still present underground, creating changes seen today.
NASA’s Curiosity Mars rover viewed this low ridge, which looks a bit like a crumbling curb, on May 16. Scientists think the hardened edges of such ridges — part of the boxwork region the rover is exploring — may have been formed by ancient groundwater.NASA/JPL-Caltech/MSSS Scientists hope to gain more insight into why the boxwork patterns formed here, and Mars recently provided some unexpected clues. The bedrock between the boxwork ridges has a different composition than other layers of Mount Sharp. It also has lots of tiny fractures filled with white veins of calcium sulfate, another salty mineral left behind as groundwater trickles through rock cracks. Similar veins were plentiful on lower layers of the mountain, including one enriched with clays, but had not been spotted in the sulfate layer until now.
“That’s really surprising,” said Curiosity’s deputy project scientist, Abigail Fraeman of JPL. “These calcium sulfate veins used to be everywhere, but they more or less disappeared as we climbed higher up Mount Sharp. The team is excited to figure out why they’ve returned now.”
New Terrain, New Findings
On June 8, Curiosity set out to learn about the unique composition of the bedrock in this area, using the drill on the end of its robotic arm to snag a sample of a rock nicknamed “Altadena.” The rover then dropped the pulverized sample into instruments within its body for more detailed analysis.
Drilling additional samples from more distant boxwork patterns, where the mineral ridges are much larger, will help the mission make sense of what they find. The team will also search for organic molecules and other evidence of an ancient habitable environment preserved in the cemented ridges.
As Curiosity continues to explore, it will be leaving a new assortment of nicknames behind, as well. To keep track of features on the planet, the mission applies nicknames to each spot the rover studies, from hills it views with its cameras to specific calcium sulfate veins it zaps with its laser. (Official names, such as Aeolis Mons — otherwise known as Mount Sharp — are approved by the International Astronomical Union.)
The previous names were selected from local sites in Southern California, where JPL is based. The Altadena sample, for instance, bears the name of a community near JPL that was severely burned during January’s Eaton Canyon fire. Now on a new part of their Martian map, the team is selecting names from around Bolivia’s Salar de Uyuni, Earth’s largest salt flat. This exceptionally dry terrain crosses into Chile’s Atacama Desert, and astrobiologists study both the salt flat and the surrounding desert because of their similarity to Mars’ extreme dryness.
More About Curiosity
Curiosity was built by NASA’s Jet Propulsion Laboratory, which is managed by Caltech in Pasadena, California. JPL leads the mission on behalf of NASA’s Science Mission Directorate in Washington as part of NASA’s Mars Exploration Program portfolio.
For more about Curiosity, visit:
science.nasa.gov/mission/msl-curiosity
News Media Contacts
Andrew Good
Jet Propulsion Laboratory, Pasadena, Calif.
818-393-2433
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Karen Fox / Molly Wasser
NASA Headquarters, Washington
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Last Updated Jun 23, 2025 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 Mars Home This image was taken by Front Hazard Avoidance Camera (Front Hazcam) onboard NASA’s Mars rover Curiosity on Sol 4564 NASA/JPL-Caltech Written by Michelle Minitti, Planetary Geologist at Framework
Earth planning date: Monday, June 9, 2025
The image above shows the drill poised on the surface of Mars at the start of our attempt to collect sample at “Altadena” over the weekend. Now we know, from subsequent imaging and telemetry, that the drill activity was successful, allowing planning today to focus on delivering sample powder to CheMin and SAM. CheMin and SAM will give us their distinct and valuable insights into the mineralogy (CheMin) and volatiles and organic compounds (SAM) within Altadena, which are key to our continued unravelling the history of Mt. Sharp. It is always exciting to find out what each of these instruments uncovers from Martian samples.
In addition to those sample deliveries, we had three other Altadena-focused activities. We acquired ChemCam RMI of the drill hole which helps ChemCam refine their laser targeting for future LIBS analyses of the drill hole. We planned a ChemCam passive spectroscopy observation of the cuttings around the drill hole for more insight into the mineralogy of the sample. We also included a single Mastcam M100 image of the drill hole which helps us track the wind activity at the drill site and thus the stability of the cuttings ahead of planned observations with APXS and MAHLI.
The weekend activities ran faster and more efficiently than modeled so that we had power to add additional science observations into the plan. We gathered more ChemCam data from the bedrock near Altadena at the target “Bolsa Chica,” and planned two ChemCam RMI long distance mosaics on sedimentary structures within “Texoli” butte and nearby boxwork structures. We kept track of the environment around us with yet more Mastcam imaging for wind-induced changes in the “Camp Williams” area, regular RAD and REMS measurements, two DAN measurements, and Navcam dust devil imaging and cloud movies.
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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 Mars Home 3 min read
Sols 4559-4560: Drill Campaign — Searching for a Boxwork Bedrock Drill Site
NASA’s Mars rover Curiosity acquired this image of a portion of its workspace, full of interesting but not drillable bedrock, using its Left Navigation Camera on June 2, 2025 — Sol 4558, or Martian day 4,558 of the Mars Science Laboratory mission — at 12:23:24 UTC. NASA/JPL-Caltech Written by Lucy Lim, Planetary Scientist at NASA’s Goddard Space Flight Center
Earth planning date: Monday, June 2, 2025
Now that Curiosity has spent a few sols collecting close-up measurements of the rocks in the outer edge of the boxwork-forming geologic unit, the team has decided that it’s time to collect a drill sample. The geochemical measurements by APXS and ChemCam have shown changes since we crossed over from the previous layered sulfate unit, but we can’t figure out the mineralogy from those data alone. As we’ve often seen before on Mars, the same chemical elements can crystallize into a number of different mineral assemblages. That’s even more the case in sedimentary rocks such as we are driving through, in which different grains in our rocks may have formed in different times and places. This also means that when we do get our mineral data, those minerals will tell us a lot about the history of these new-to-us rocks.
On board Curiosity, that mineral analysis is the job of the CheMin instrument, which uses X-ray diffraction to identify minerals. CheMin shines a narrow X-ray beam through a powdered sample in order to generate the diffraction pattern, which means that it needs a drilled sample. So the team today was busy looking for a drillable spot. Unfortunately the rover’s drill reach from today’s parking spot included only rocks that were too fractured or had too much debris sitting on them to be considered likely to produce a good drilled sample, so we will have to move, or “bump,” at least one more time before progressing to the drill preload test, which is the next step in drilling.
In the meantime, we are taking more measurements to understand the range of compositions that can be found in this rock layer. Dust removal (DRT) + APXS + LIBS + MAHLI were all planned for target “Holcomb Valley,” while a short distance away a second DRT/APXS/MAHLI measurement was planned for “Santa Ysabel Valley” and in another direction, a second LIBS for “Stough Saddle.” One long-distance ChemCam remote imaging mosaic was planned to cover a boxwork structure off in the distance. Mastcam had a relatively light day of imaging, with just a couple of small mosaics covering a nearby trough feature, and providing context for the RMI of the boxwork structure, in addition to documenting the two LIBS targets. The modern Mars environment was also recorded with a couple of movies to look for dust-devil activity, a measurement of atmospheric opacity, and a pair of suprahorizon observations to look for clouds, plus the usual passive observations by DAN and REMS to monitor the neutron environment, temperature, and humidity.
I’ll be on rover planning Wednesday as Geology and Mineralogy Science Theme Lead and looking forward to what we find — hopefully some drillable boxwork-unit bedrock!
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Last Updated Jun 04, 2025 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 Mars Home 2 min read
Sol 4546: Martian Jenga
NASA’s Mars rover Curiosity acquired this image using its Left Navigation Camera on May 19, 2025 — Sol 4544, or Martian day 4,544 of the Mars Science Laboratory mission — at 02:23:29 UTC. NASA/JPL-Caltech Written by Michelle Minitti, Planetary Geologist at Framework
Earth planning date: Monday, May 19, 2025
Have you ever played the game Jenga, where you remove one wooden block from a stack, gently place it on another part of the stack, then repeat over and over as you try to keep the stack from toppling over? There are strategies to the game such as what blocks you can afford to remove, and where you can manage to place them without throwing the structure out of balance. That is very much how planning felt today — but instead of wooden blocks, the objects the science team was moving around were science observations in the plan.
We had an unusual one-sol plan today so there were very restricted time windows in the plan in which to fit science observations and our next drive. We are driving through an area with criss-crossing fracture sets (which we call boxwork structures) large enough to be seen from orbit. Since they have only recently come within our view, there is no shortage of new observations to make of the fractures as we try to understand the processes that led to their formation. If the fractures were caused by extensive fluid flow through the Martian crust, understanding them would be an important contribution toward tracing the history of Martian water.
To fit in all the desired observations — including APXS and MAHLI on a DRT-brushed target, multiple ChemCam RMI and Mastcam mosaics, and a ChemCam LIBS analysis — in addition to environmental monitoring activities and a long drive, the team used every trick in its book to achieve a delicate balancing act of science, time, and power. Some activities were trimmed to fit in smaller time windows, others were moved to less-constrained parts of the plan, and other activities were placed in parallel with each other to take advantage of Curiosity’s ability to multitask.
Once our planning Jenga game was over, the team had won — we had a complete and perfectly balanced plan! Who says you cannot teach an old dog (4,546-sols-old) new tricks?
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Last Updated May 22, 2025 Related Terms
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