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Sols 4559-4560: Drill Campaign — Searching for a Boxwork Bedrock Drill Site
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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 4 min read
Sols 4561-4562: Prepping to Drill at Altadena
NASA’s Mars rover Curiosity acquired this image of a recent DRT (Dust Removal Tool) site, showing off the marks created in the rocks by DRT — a motorized, wire-bristle brush on the turret at the end of the rover’s robotic arm — as well as a whitish vein that was revealed after the dust covering it was removed. Curiosity acquired this image using its Mars Hand Lens Imager (MAHLI), a camera mounted on the turret at the end of the robotic arm, which provides close-up views of the minerals, textures, and structures in Martian rocks and the surface layer of rocky debris and dust. Using an onboard process, MAHLI merges two to eight images to make a composite image of the same target acquired at different focus positions, to bring many features into focus in a single image. Curiosity merged this composite on June 4, 2025 — Sol 4560. Or Martian day 4,560 of the Mars Science Laboratory Mission — at 12:33:42 UTC. NASA/JPL-Caltech/MSSS Written by Conor Hayes, Graduate Student at York University
Earth planning date: Wednesday, June 4, 2025
We are continuing to look for a suitable location to collect a drilled sample in this area. As you may recall from Monday’s plan, we performed a short “bump” of just under 4 meters (about 13 feet) hoping to find a drill target today after Monday’s analysis determined that there were no good targets in our previous workspace. Happily, today’s workspace was much more cooperative, and we were able to select the target “Altadena” as our next potential drill location. Altadena is a name that we’ve been saving for a special target, as its namesake here on Earth is a neighborhood next to JPL that was devastated by the Eaton Fire earlier this year. We’re about to enter our next mapping quadrangle, which will come with a new set of target names, so the team decided that using Altadena as the name for this drill site was an obvious choice.
The big activity in this plan is the next step in the drilling process. This activity is the “preload test,” which determines if the forces on the drill will be good while drilling, and the drill target won’t unexpectedly move or fracture. If we pass the preload test and find that the rock has the chemistry we’re looking for, we’ll be able to proceed with Altadena as our next drill site. If we don’t, we’ll have to decide whether to bump again or resume driving deeper into this potentially boxwork-bearing region.
Of course, the preload test isn’t the only thing we’re doing today. Coming in, it was looking like our time for other activities would be pretty tight due to power constraints imposed by preparations for drilling and keeping the rover warm during the cold Martian winter. However, we’ve recently implemented some new power-optimizing capabilities, which led to us having much more power today than we expected. This meant that we were able to add a whole additional hour of science time in addition to the hour that we already had scheduled.
Unsurprisingly, Altadena gets a lot of love in this plan to characterize it before we drill. This includes a ChemCam LIBS activity and a Mastcam observation, as well as some overnight observations by APXS and some MAHLI images. In addition, Mastcam will be observing some exposed stratigraphy at “Dana Point,” a light-toned vein at “Mission Trails” that will also be a ChemCam LIBS target, a few more nearby troughs, and a couple of sandy patches at “Camp Williams” to observe wind-driven sediment transport. Along with the two LIBS, ChemCam will be using its RMI camera to add to the pile of images we have of the Mishe Mokwa butte and the yardang unit off in the distance.
As the lead for the Atmosphere and Environment (ENV) group today, it looked like I was going to have a pretty light workload due to the power constraints preventing any ENV activities other than our usual REMS, RAD, and DAN observations. With the extra hour of science time, I was able to add a handful of new activities, including three Navcam cloud movies, a Navcam line-of-sight observation of dust within Gale Crater, and a Navcam survey to look for any dust devils that may be swirling around the rover. A pretty decent ENV science haul for a plan that started with nothing!
When we come into planning on Friday, we’ll hopefully have passed the preload test and will be able to turn Altadena into our 43rd drill hole in the coming sols, before we continue driving up the slopes of Mount Sharp.
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Last Updated Jun 06, 2025 Related Terms
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Searching for Ancient Rocks in the ‘Forlandet’ Flats
NASA’s Mars Perseverance rover acquired this image of the “Fallbreen” workspace using its onboard Left Navigation Camera (Navcam). The camera is located high on the rover’s mast and aids in driving. This image was acquired on May 22, 2025 (Sol 1512, or Martian day 1,512 of the Mars 2020 mission) at the local mean solar time of 14:39:01. NASA/JPL-Caltech Written by Henry Manelski, Ph.D. student at Purdue University
This week Perseverance continued its gradual descent into the relatively flat terrain outside of Jezero Crater. In this area, the science team expects to find rocks that could be among the oldest ever observed by the Perseverance rover — and perhaps any rover to have explored the surface of Mars — presenting a unique opportunity to understand Mars’ ancient past. Perseverance is now parked at “Fallbreen,” a light-toned bedrock exposure that the science team hopes to compare to the nearby olivine-bearing outcrop at “Copper Cove.” This could be a glimpse of the geologic unit rich in olivine and carbonate that stretches hundreds of kilometers to the west of Jezero Crater. Gaining insight into how these rocks formed could have profound implications for our constantly evolving knowledge of this region’s history. Perseverance’s recent traverses marked another notable transition. After rolling past Copper Cove, Perseverance entered the “Forlandet” quadrangle, a 1.2-square-kilometer (about 0.46 square mile, or 297-acre) area along the edge of the crater that the science team named after Forlandet National Park on the Norwegian archipelago of Svalbard. Discovered in the late 16th century by Dutch explorers, this icy set of islands captured the imagination of a generation of sailors searching for the Northwest Passage. While Perseverance is in the Forlandet quad, landforms and rock targets will be named informally after sites in and around this national park on Earth. As the rover navigates through its own narrow passes in the spirit of discovery, driving around sand dunes and breezing past buttes, we hope it channels the perseverance of the explorers who once gave these rocks their names.
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Last Updated Jun 06, 2025 Related Terms
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Sols 4556-4558: It’s All in a Day’s (box)Work
NASA’s Mars rover Curiosity acquired this image using its Right Navigation Camera on June 2, 2025 — Sol 4558, or Martian day 4,558 of the Mars Science Laboratory mission — at 12:23:56 UTC. NASA/JPL-Caltech Written by Sharon Wilson Purdy, Planetary Geologist at the Smithsonian National Air and Space Museum
Earth planning date: Friday, May 30, 2025
When you are scheduled to participate in Science Operations for the rover’s weekend plan, you know it’s going to be a busy morning! Assembling the activities for Friday through Sunday (Sols 4556 through 4558) was no exception. I participated on this shift as the “keeper of the plan” for the geology and mineralogy theme group where I worked with members of the science and instrument teams to compile a set of observations for the rover to complete over the weekend. The rover continues to drive over a surface of shallow, sometimes sand-filled depressions that are separated by raised ridges — informally known as the “boxwork structures.” On this Friday, we were tasked with assessing the ground in our immediate vicinity to determine if the low-lying bedrock in the hollows was suitable for drilling.
With a focus on packing the plan with remote sensing activities to understand the bedrock around us, we used the ChemCam laser to analyze the chemistry of two bedrock targets, “La Tuna Canyon” and “Cooper Canyon,” that were also documented by Mastcam. ChemCam and Mastcam also teamed up to image an interesting dark ridge nearby named “Encinal Canyon.” Mastcam created stereo mosaics to document the nature of the candidate drill sites that were near the rover, in addition to the “Blue Sky Preserve” stereo mosaic that beautifully captured the nature of the boxwork structures in front of us. The environmental theme group included some of their favorite activities in the plan to monitor the clouds, wind, and the atmosphere.
Curiosity has successfully completed numerous long drives (about 20+ meters, or 66 feet and beyond) in the past several weeks but this weekend the rover got a bit of a reprieve — the rover will drive approximately 7 meters (about 23 feet) to get situated in front of a possible drill site. I’m eagerly looking forward to seeing what unfolds on Monday!
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Sols 4554–4555: Let’s Try That One Again…
NASA’s Mars rover Curiosity acquired this image using its Front Hazard Avoidance Camera (Front Hazcam) on May 28, 2025 — Sol 4553, or Martian day 4,553 of the Mars Science Laboratory mission — at 04:48:55 UTC. NASA/JPL-Caltech Written by Abigail Fraeman, Planetary Geologist at NASA’s Jet Propulsion Laboratory
Earth planning date: Wednesday, May 28, 2025
We came in early this morning and learned that part of Tuesday’s plan didn’t execute on Mars due to a temporary issue with the arm. We collected APXS data on the target “Palo Verde Mountains,” but were not able to take the corresponding MAHLI images or drive away. So it was a straightforward decision for the planning team today to pick up where we left off yesterday, giving ourselves a second chance to collect the MAHLI observation and then complete the same 29.5-meter drive to the west (about 97 feet) that we had planned on Tuesday.
We love making lemonade from lemons when things don’t go exactly as expected in rover tactical planning, and today was no exception. Since we’re sticking around for a little bit longer, the science team decided to collect additional mosaics of impressive nearby features, including a 15×2 Mastcam mosaic of the “Mishe Mokwa” hill and an 11×2 Mastcam mosaic of fractures near “Lake Cachuma.” We’re also having another go at taking the epically long, long-distance RMI mosaic of a crater 91 kilometers away from Curiosity (almost 57 miles) that we planned yesterday, and we’re playing around with the focus settings to see if we can get a sharper image.
The team also had time for a second RMI mosaic of our very well-imaged “Texoli” butte, and a ChemCam LIBS observation on a target named “Santa Monica Bay,” which is just above the “Sisquoc River” target we observed yesterday on the bumpy rock in our workspace. As usual, we will also continue to monitor the environment around us with REMS, RAD, Navcam, and Mastcam observations.
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Sol 4553: Back to the Boxwork!
NASA’s Mars rover Curiosity acquired this image of its workspace in the “boxwork” terrain area, showing resistant, ridge-like features where it will investigate the targets dubbed “Sisquoc River” and “Palo Verde Mountains.” Curiosity acquired the image using its Left Navigation Camera on May 27, 2025 — Sol 4552, or Martian day 4,552 of the Mars Science Laboratory mission — at 08:38:12 UTC. NASA/JPL-Caltech Written by Lucy Thompson, Planetary Geologist at University of New Brunswick
Earth planning date: Tuesday, May 27, 2005
We return to planning today after a successful long weekend and about 42 meters of drive distance (about 138 feet). We planned four sols of activities on Friday to keep Curiosity busy, while the U.S.-based science team and engineers took time off yesterday for the Memorial Day holiday. As we got to admire the new workspace and drive direction view in front of the rover this morning, I realized that we have now driven about 35 kilometers (about 22 miles) and climbed more than 850 meters (2,789 feet) in elevation since landing nearly 13 years ago, and we continue to do exciting science on Mars, having recently driven onto new terrain.
The so-called boxwork structures are a series of resistant ridges observed both from orbit and in long-distance rover imaging (see Ashley’s blog here). Not only are the ridges of interest (do they indicate enhanced fluid-flow and cementation?), but the outcrop expression in general changed after we drove over a shallow trough onto the rocks that host the ridges.
This plan will continue characterization of the interesting boxwork terrain. We had an example of a more resistant, ridge-like feature in our workspace today (see accompanying image). The composition of the ridge will be investigated using ChemCam (target “Sisquoc River”) and APXS (target “Palo Verde Mountains”), with accompanying Mastcam and MAHLI images. We will also acquire Mastcam imaging of a trough-like feature surrounding a bedrock slab, as part of our ongoing documentation of such structures, as well as of an apparent resistant boxwork ridge in the distance (“Lake Cachuma”). And a first for our mission, we are planning the longest-distance ChemCam remote imaging mosaic that we will have acquired — 91 kilometers (almost 57 miles) away! The intent is to compare the long-distance view from the ground with HiRISE orbital images in an attempt to create a 3D view. We also managed to squeeze in a Navcam large dust-devil survey before the planned 24-meter drive (about 79 feet). Once we arrive at our new location, MARDI will take an image of the terrain beneath the rover.
The plan is rounded out with the standard REMS, DAN and RAD activities.
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