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Sols 4539-4540: Back After a Productive Weekend Plan
NASA’’s Mars rover Curiosity acquired this image using its Left Navigation Camera on May 11, 2025 — Sol 4537, or Martian day 4,537 of the Mars Science Laboratory mission — at 22:26:23 UTC. NASA/JPL-Caltech Written by Scott VanBommel, Planetary Scientist at Washington University
Earth planning date: Monday, May 12, 2025
Curiosity was back to work Monday, picking up where it left off from Friday’s plan. Tosol’s plan started with an APXS analysis on the target “Jeffrey Pine,” though the DRT was kept on the sidelines this time. Curiosity then proceeded to image Jeffrey Pine and “Canyon Oak” with MAHLI while simultaneously executing a DAN passive analysis. Mastcam documented “Santiago Peak” as well as Canyon Oak, prior to a ChemCam 5-spot analysis on the latter. Following a drive of about 30 meters (about 98 feet), Curiosity rounded out the two-sol plan with untargeted and environmental monitoring activities, including Navcam dust-devil and cloud-shadow movies.
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Last Updated May 13, 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
Sols 4536-4538: Dusty Martian Magnets
NASA’s Mars rover Curiosity acquired this image, used to inspect the magnet on its MAHLI (Mars Hand Lens Imager), a camera on the turret of tools at the end of the rover’s robotic arm. The main purpose of Curiosity’s MAHLI camera is to acquire close-up, high-resolution views of rocks and regolith in the field; it can focus on any target from about 0.8 inches (2.1 centimeters) to infinity. Curiosity used its Mast Camera (Mastcam) on Sept. 1, 2024 — Sol 4291, or Martian day 4,291 of the Mars Science Laboratory mission — at 05:48:14 UTC. NASA/JPL-Caltech/MSSS Written by Remington Free, Operations Systems Engineer at NASA’s Jet Propulsion Laboratory
Earth planning date: Friday, May 9, 2025
I was on downlink today for SA-SPaH, our robotic arm team. We successfully completed a number of fun arm activities, including a DRT brushing and APXS observations of a bedrock target, and also completed a traverse of about 25 meters (about 82 feet). Exciting!
Today, our uplink team planned three sols of activities. On Sol 4536, we are using the arm to do some inspection imaging of the MAHLI magnet using Mastcam. This magnet allows us to determine whether or not the MAHLI cover has successfully opened or closed. These magnets accumulate a lot of Martian dust particles, so we periodically take imaging to inspect the quantity of dust and get a better understanding of the state of the hardware. I’ve included above an image of the MAHLI instrument, from our last inspection on Sol 4291. After the magnet inspection, we’ll do some more typical arm activities, which include some APXS placements, DRT brushing, and MAHLI imaging on targets of interest.
In this workspace, we are interested in targets characterizing the pale layered sulfate unit we’ve been driving on, as well as a target in the new ridge-forming unit. Beyond our arm activities, we’ll do additional science observations of the surface using Mastcam and ChemCam.
On Sol 4537, we’ll focus on driving! Prior to our drive, we’ll take some more scientific observations, including a Navcam cloud movie, Mastcam documentation of some geological units, and ChemCam LIBS on a ridge-forming unit. We have then planned a 21-meter drive (about 69 feet) to take us to a bedrock area of scientific interest. We’re excited because the terrain looks pretty benign, so we’re hoping it all goes smoothly!
Post-drive, we’ll take some Mastcam survey imaging of clasts and soils along the traverse. Finally on Sol 4538, we’ll aim our focus upwards and take a number of observations of the sky. We’ll start with a Navcam large dust-devil survey, a Mastcam tau measurement of the atmospheric optical depth, and a ChemCam passive sky observation to study atmospheric composition. Early the following morning, we’ll take some additional Navcam observations of clouds, and complete another Mastcam tau measurement of optical depth.
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Last Updated May 13, 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
Sols 4532-4533: Polygon Heaven
NASA’s Mars rover Curiosity acquired this image, showing an example of the polygonally fractured terrain that it has been driving over, using its Right Navigation Camera. The rover captured the image on May 4, 2025 — Sol 4530, or Martian day 4,530 of the Mars Science Laboratory mission — at 18:07:04 UTC. NASA/JPL-Caltech Written by Catherine O’Connell-Cooper, Planetary Geologist at University of New Brunswick
Earth planning date: Monday, May 5, 2025
Our 29-meter weekend drive (about 95 feet) was successful, and we are still in the band of polygon-rich bedrock.
The origin of these cracks is not clear — could they have formed as desiccation cracks as Mars began to get drier, billions of years ago? Or during later periods when groundwater moved through the bedrock? Spending time in this area will help us to tease out their origin by sampling as much of the diversity as we can, from regular bedrock to the stranger textured targets. Touch and Go plans allow only a few hours of science at a given workspace — in this plan, the rover turns on around 9 a.m. local time, and by 2 p.m. we have picked up and moved on to the next stop. So planning on a day like today is quite the balancing act, trying to cram in as much science, as efficiently as possible, in a small amount of time.
On Friday, I helped plan APXS on some of the polygon features, so today we were able to concentrate on more typical bedrock without polygonal features, to compare with our last targets. We wiIl acquire a short APXS integration on the brushed target “Encinitas,” and image the target with MAHLI. In contrast, ChemCam will use LIBS to analyze “Jack Creek,” an elongated vein feature about 30 centimeters long (about 12 inches), which may be related to the polygon features. Both Mastcam and MAHLI will image this vein.
Beyond the workspace, but relatively closer to the rover, Mastcam will image “Loma Verde” on a small, overturned block and “Temescal Canyon,” looking at a larger expanse of bedrock with polygonal structures. Further afield, ChemCam will acquire a long-distance image at “Agua Tibia,” which is close to “Torote Bowl,” a circular feature that we have been imaging periodically since sol 4486.
Once all the science has been gathered here in our very busy morning, we move on in a 26-meter drive (about 85 feet). We are edging closer to the “boxwork structures” — it feels like we have been saying this in every blog for a long time, but we will have “wheels on” for the first time within the next few drives.
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Last Updated May 08, 2025 Related Terms
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Sols 4529-4531: Honeycombs and Waffles… on Mars!
NASA’s Mars rover Curiosity captured this image of its current workspace, containing well-preserved polygonal shaped fractures, with waffle or honeycomb patterns. The rover acquired this image using its Front Hazard Avoidance Camera (Front Hazcam) on May 1, 2025 — Sol 4527, or Martian day 4,527 of the Mars Science Laboratory mission — at 16:41:35 UTC. NASA/JPL-Caltech Written by Catherine O’Connell-Cooper, Planetary Geologist at University of New Brunswick
Earth planning date: Friday, May 2, 2025
From our Wednesday stopping spot, the drive direction ahead (looking along the path we would follow in the Wednesday drive) appeared to be full of rough, gnarly material, which can be tricky targets for contact science instruments like APXS. However, coming into planning this morning, we found a workspace with amazingly well preserved polygonal shaped fractures, with raised ridges (about 1 centimeter, or about 0.39 inches, high), looking like a patchwork of honeycombs, or maybe a patch of waffles. We have spotted these before but usually not as well preserved and extensive as this — we can see these stretching away into the distance for 20-30 meters (about 66-98 feet), almost to the edge of the “boxwork” fracture structures at “Ghost Mountain” butte in this Navcam image. We are all counting down the drives to get to the boxwork structures — this will be such an exciting campaign to be part of.
As APXS operations planner today, I was really interested to see if we could get APXS close to one of the raised ridges, to determine what they are made of. The Rover Planners were able to get a paired set of targets — “Orosco Ridge” along a ridge and “Box Canyon” in the adjacent, flat center of the polygon. The ChemCam team is also interested (in truth, everyone on the team is interested!!) in the composition of the ridges. So ChemCam will use LIBS to measure both bedrock and ridge fill at “Kitchen Creek” on the first sol of the plan and “Storm Canyon” on the second sol.
The “problem” with a workspace like this is picking which images to take in our short time here, before we drive on the second sol. We could stay here for a week and still find things to look at in this workspace. After much discussion, it was decided that MAHLI should focus on a “dog’s eye” mosaic (“Valley of the Moon”) along the vertical face of the large block. We hope this will allow us to examine how the fractures interact with each other, and with the preexisting layering in the bedrock.
Mastcam will then focus on the two main blocks in the workspace in an 8×4 (4 rows of 8 images) Kitchen Creek mosaic, which also encompasses the LIBS target of the same name, and a single image on the Storm Canyon LIBS target. Three smaller mosaics at “Green Valley Falls” (3×1), “Lost Palms Canyon” (7×2) and “San Andreas Fault” (1×2) will examine the relationships between the polygonal features and other fractures in the workspace, close to the rover.
Further afield, ChemCam will turn the “LD RMI” (Long-Distance Remote Micro Imager) on “Texoli” butte (the large butte to the side of the rover, visible in this image from sol 4528). Both Mastcam and ChemCam will image the boxwork fracture system near Ghost Mountain — they are so close now, it’s just a few drives away! Any information we get now may be able to help us answer some of the questions we have on the origin and timing of the boxwork structures, especially when we can combine it with the in situ analysis we will be getting shortly! (Did I mention how excited we all are about this campaign?)With all the excitement today on the wild fracture structures, it could be easy to overlook Curiosity’s dataset of environmental and atmospheric data. For more than 12 years now, we have been collecting information on dust and argon levels in the atmosphere, water and chlorine levels in the subsurface, wind speeds, humidity, temperature, ultraviolet radiation, pressure, and capturing movies and images of dust devils. This weekend is no different, adding a full complement of activities from almost every team — Navcam, REMS, DAN, Mastcam, ChemCam, and APXS will all collect data for the environmental and atmospheric theme group (ENV) in this plan.
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Last Updated May 06, 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
Sols 4527-4528: ‘Boxwork Ahoy!’
NASA’s Mars rover Curiosity acquired this image looking directly west and showing a first ground view of the boxwork structures the rover is driving toward. The boxwork structures are visible in the distance as smoother terrain criss-crossed by ridges, just below the hilltops. Curiosity acquired this image using its Left Navigation Camera on April 30, 2025 – Sol 4526, or Martian day 4,526 of the Mars Science Laboratory mission – at 14:10:41 UTC. NASA/JPL-Caltech Written by Natalie Moore, Mission Operations Specialist at Malin Space Science Systems
Earth planning date: Wednesday, April 30, 2025
We’re back in our standard “touch and go” plan regime today, where we sandwich a midday remote science block between morning-APXS and afternoon-MAHLI contact science arm blocks. We had our first late-slide 9 a.m. PDT start in quite a while due to our “isolated nominal” plan on Monday! This meant the whole team was ready and “patiently” (read: not-so-patiently) waiting for our drive data to come down around 8:40 this morning. Thankfully, everything we were waiting for came down to Earth and told us Curiosity was right where we wanted her to be! The planning begins…
Sol 4527 contains most of our activities in this plan. We start off about 10:00 local Gale time with a DRT and APXS analysis of contact science target “Tamarack Valley,” a rough but brushable bedrock target in our workspace. We leave the arm unstowed (and out of the way) for our remote science block spanning the hours of about 12:35-13:45. That block starts with a large, 76-frame stereo Mastcam mosaic covering the boxwork structures to the west while ChemCam’s instrument cools down to allow for LIBS.
After Mastcam is done, ChemCam shoots their LIBS on a rougher bedrock target named “Aguanga,” and an RMI mosaic of the boxwork structures included in the Mastcam mosaic. About 14:00 local time, MAHLI finishes the contact science with a full suite of Tamarack Valley (25-centimeter, 5-centimeter stereo, and 1-centimeter images). Then we drive! Hopefully about 30 meters closer (about 98 feet) to the boxwork structures for our weekend plan.
Curiosity takes the second sol easier with some Navcam dust-devil and horizon movies, along with a rover-decided LIBS target at our new location to start off science decisions for Friday.
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Last Updated May 04, 2025 Related Terms
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