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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 4486-4487: Ankle-Breaking Kind of Terrain!
NASA’s Mars rover Curiosity acquired this image using its Front Hazard Avoidance Camera (Front Hazcam) on March 18, 2025 — sol 4484, or Martian day 4,484 of the Mars Science Laboratory mission — at 11:54:13 UTC. NASA/JPL-Caltech Written by Catherine O’Connell-Cooper, Planetary Geologist at University of New Brunswick
Earth planning date: Wednesday, March 19, 2025
This terrain is a tricky drive, with rocks angled chaotically all around. One of our geologists remarked that they wouldn’t like to even walk over this without solid boots coming way up over the ankles — this is definitely the kind of terrain to result in twisted and broken ankles! So it wasn’t too unexpected that the drive we had planned on Monday cut short after 18 meters (about 59 feet). Fortunately, we ended up both at a workspace with abundant bedrock and in an orientation that allowed us to pass SRAP (our “Slip Risk Assessment Process”).
The rover planners were quickly able to find a spot to brush, so we have a coordinated target on “Palm Grove,” one of the laminated rocks in the lower half of the accompanying image. APXS and MAHLI will look at this target on the first sol of the plan, and then ChemCam LIBS and Mastcam will look at it on the second sol. Although the bulk of the bedrock is relatively nodule free, ChemCam will look at the nodular target “Refugio” to compare to the more dominant, nodule-poor bedrock.
On Monday, our workspace included some very interesting layers in the bedrock that might represent preserved sand ripples, but sadly, as Conor reported on Monday, we didn’t pass SRAP, which precluded any contact science. However, today we ended up near rocks that had similar layer geometry, and will acquire a MAHLI “Dog’s Eye” or mosaic image of these rocks at “Duna Vista” and two Mastcam 5×3 mosaics (“Bayside Trail” and “Oso Flaco”) on other examples.
Mastcam is taking several other images here. A 14×3 mosaic will capture the “nearfield” or area close to the rover, and a set of four further images focus on four distinct trough features, to help us better understand ongoing modification of the surface. Further afield, the “Quartz Hill” and “Pino Alto” mosaics look at areas of fragmented bedrock which may be similar to the “Humber Park” outcrop we analyzed this past weekend. Even further from the rover, ChemCam will acquire RMI (Remote Micro Imager) images of the “Boxworks” and an almost circular depression (“Torote Bowl”) whose origin is not clear.
The environmental theme group (ENV) planned a Mastcam tau (to look at dust in the atmosphere) and a Navcam dust-devil survey (to look for dust devils!) for the first sol of the plan. On the second sol, we fill out the movies with Navcam movies looking toward the south of the crater (suprahorizon, cloud shadow, and zenith movies) and a Mastcam sky survey.
In between the movies on the second sol, our drive is planned to take us another 34 meters (about 112 feet)… but we will have to see how far our intrepid rover will make it on this tricky terrain. Slow and steady will win this race!
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Last Updated Mar 21, 2025 Related Terms
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By NASA
NASA/George Shelton A dolphin swims through the water in the Launch Complex 39 Area turn basin at NASA’s Kennedy Space Center in Florida on Nov. 6, 2007. The turn basin was carved out of the Banana River when NASA Kennedy was built. Dolphins are a frequent sight in the rivers around Kennedy, which shares a boundary with the Merritt Island Wildlife Nature Refuge.
The refuge was established in 1963 for the protection of migratory birds. Consisting of 140,000 acres, the refuge provides a wide variety of habitats: coastal dunes, saltwater marshes, managed impoundments, scrub, pine flatwoods, and hardwood hammocks. These habitats provide a home for more than 1,500 species of plants and animals and 15 federally listed species.
Image credit: NASA/George Shelton
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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 4484-4485: Remote Sensing on a Monday
NASA’s Mars rover Curiosity acquired this image using its Left Navigation Camera on March 17, 2025 — sol 4483, or Martian day 4,483 of the Mars Science Laboratory mission — at 09:38:17 UTC. NASA/JPL-Caltech Written by Conor Hayes, Graduate Student at York University
Earth planning date: Monday, March 17, 2025
Last week I was in Houston, Texas, at the Lunar and Planetary Science Conference. The mid-March weather in Houston is often more like mid-summer weather here in Toronto, so it has been a bit of a shock coming home to temperatures that are hovering around freezing rather than being in the upper 20s (degrees Celsius, or the low to mid 80s for those of you still using Fahrenheit). Still, Toronto is positively balmy compared to Gale Crater, where temperatures usually range between minus 80°C and minus 20°C (or minus 110°F to minus 5°F) during this part of the year. These cold temperatures and their associated higher demands on the rover’s available power for heating are continuing to motivate many of the decisions that we make during planning.
We received the double good news this morning that the weekend’s drive completed successfully, including the mid-drive imaging of the other side of “Humber Park” that Michelle mentioned in Friday’s blog, and that our estimates of the weekend plan’s power consumption ended up being a little conservative. So we started planning exactly where we wanted to be, and with more power to play around with than we had expected. Yay!
The weekend’s drive left us parked in front of some rocks with excellent layering and interesting ripples that we really wanted to get a closer look at with MAHLI. (See the cover image for a look at these rocks as seen by Navcam.) Sadly, we also ended up parked in such a way that presented a slip hazard if the arm was unstowed. As much as we would have loved to get close-up images of these rocks, we love keeping Curiosity’s arm safe even more, so we had to settle for a remote sensing-only plan instead.
Both the geology and mineralogy (GEO) and the environmental science (ENV) teams took full advantage of the extra power gifted to us today to create a plan packed full of remote sensing observations. Because we’re driving on the first sol of this two-sol plan, any “targeted” observations, i.e. those where we know exactly where we want to point the rover’s cameras, must take place before the drive. The first sol is thus packed full of Mastcam and ChemCam observations, starting with a 14×3 Mastcam mosaic of the area in front of us that’s outside of today’s workspace. Individual targets then get some Mastcam love with mosaics of various ripple and layering features at “Verdugo Peak,” “Silver Moccasin Trail,” and “Jones Peak.” Mastcam and ChemCam also team up on a LIBS target, “Trancas Canyon,” and some more long-distance mosaics of Gould Mesa, a feature about 100 meters away from us (about 328 feet) that we’ll be driving to the south of as we continue to head toward the “boxwork” structures.
After a drive, there often aren’t many activities scheduled other than the imaging of our new location that we’ll need for the next planning day. However, in this plan ENV decided to take advantage of the fact that Navcam observations can take place at the same time that the rover is talking to one of the spacecraft that orbit Mars. This is a useful trick when power is tight as it allows us to do more science without adding additional awake time (since the rover needs to be awake anyway to communicate with the orbiters). Today, it’s being used to get some extra cloud observations right before sunset, a time that we don’t often get to observe. These observations include a zenith movie that looks straight up over the rover and a “phase function sky survey,” which takes a series of nine movies that form a dome around the rover to examine the properties of the clouds’ ice crystals.
The second sol of this plan is much more relaxed, as post-drive sols often are because we don’t know exactly where we’ll be after a drive. Today, we’ve just got our usual ChemCam AEGIS activity, followed by a pair of Navcam cloud and cloud shadow movies to measure the altitude of clouds over Gale. As always, we’ve also got our usual set of REMS, RAD, and DAN activities throughout this plan.
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Last Updated Mar 20, 2025 Related Terms
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By NASA
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 4481-4483: Humber Pie
NASA’s Mars rover Curiosity acquired this image using its Front Hazard Avoidance Camera (Front Hazcam) on March 14, 2025 — sol 4480, or Martian day 4,480 of the Mars Science Laboratory mission — at 08:53:19 UTC. NASA/JPL-Caltech Written by Michelle Minitti, Planetary Geologist at Framework
Earth planning date: Friday, March 14, 2025
The rover successfully arrived at the “Humber Park” outcrop which, on this fine “Pi Day” on Earth, we could convince ourselves looked like a pie with a sandy interior and a rough and rocky crust. We can only hope our instruments are as excited to tuck into this outcrop as the Curiosity team is to eat our pizzas and favorite pies (for me, pumpkin) this afternoon and evening.
MAHLI gets a big serving of rock structures from the Humber Park “crust” with three separate imaging targets. One observation, at the target “Yerba Buena Ridge,” covers structures expressed across the front of the outcrop in the above image. A second target, “Sepulveda Pass,” has intriguing texture that warranted multiple flavors of stereo imaging. The final target, which MAHLI shared with APXS, was “South Fork.” It was the clearest place to put APXS down on the rough bedrock blocks.
ChemCam also feasted on rock chemistry from an array of targets with different textures. “Ridge Route” covered a low-lying bedrock slab with the fine layering we have seen consistently through the sulfate unit, while “Toyon Canyon” covered a lumpier portion of the Humber Park outcrop above Yerba Buena Ridge. The “Mount Lawlor” target was a mix of Ridge Route and Toyon Canyon — layered, but on a high-standing portion of the outcrop that also had some unusual chains of pits. ChemCam added two long distance mosaics on “Gould Mesa” to the menu, which captured a variety of structures on this impressive butte about 100 meters ahead of the rover.
Mastcam focused on covering the whole of Humber Park with a stereo mosaic but also added small mosaics across a trough in the sand and a bedrock block with potential cross bedding at “Rancho Los Feliz.” Because just imaging this side of Humber Park was not enough, Mastcam and Navcam worked closely with the rover drivers to plan a mid-drive mosaic of the other side of the outcrop so we fully capture Humber Park’s “crust.”
Our environmental observations were not just pie in the sky but will help us monitor the chemistry of and the amount of dust in the atmosphere, and record clouds and dust devils crossing above and around us.
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Last Updated Mar 18, 2025 Related Terms
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By NASA
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 4479-4480: What IS That Lumpy, Bumpy Rock?
NASA’s Mars rover Curiosity acquired this image of its workspace, including two rocks in front of it with interesting textures, different from anything seen before in the mission. The rover took the image with its Left Navigation Camera on March 12, 2025 — sol 4478, or Martian day 4,478 of the Mars Science Laboratory mission — at 07:00:42 UTC. NASA/JPL-Caltech Written by Ashley Stroupe, Mission Operations Engineer at NASA’s Jet Propulsion Laboratory
Earth planning date: Wednesday, March 12, 2025
The days are getting shorter and colder for Curiosity as we head into winter. So our rover is sleeping in a bit before waking up to a busy plan. Today I served as the Engineering Uplink Lead, managing the engineering side of the plan to support all the science activities.
We are seeing a lot of rocks with different, interesting textures, so Curiosity’s day begins with a lot of targeted imaging of this interesting area. The two rocks right in front of us (see image above) are different from anything that we have looked at before on the mission, so we are eager to know what they are. We are taking Mastcam images of “Manzana Creek” and “Palo Comado,” two of these interestingly textured rocks, and also of an area named “Vincent Gap,” where the rover disturbed some bedrock and exposed some regolith by driving over it in the prior plan. ChemCam is making a LIBS observation of a target called “Sturtevant Falls,” which is a nodule on the left-hand block in our workspace (on which we are later doing some contact science). ChemCam is also taking a long-distance RMI image in the direction of the potential boxworks formation (large veins), which is an area we will be exploring close-up in the future. There are also a Navcam dust devil movie and suprahorzion movie. Check out this article from November for more information on the boxwork formations.
After a nap, Curiosity wakes up to get in her arm exercise. I do not envy the Arm Rover Planner today (OK, maybe a little bit) in dealing with this very challenging workspace. The rock of interest (the left-hand rock in the above image) has jagged, vertical surfaces and a lot of crazy rough texture. Examining this rock is even more challenging because our primary targets are on the left side of the rock, rather than the side that is facing the rover. We are looking at two different targets, “Stunt Ranch,” which is a nodule on the rock, and “Pacifico Mountain,” which is the left-side face of the rock, with MAHLI and also doing a long APXS integration on Stunt Ranch. After the arm work, Curiosity is tucking herself in for the night by stowing the arm.
The next morning, after again getting to sleep in a bit, Curiosity will make some more targeted observations, starting with another dust-devil survey. ChemCam will make a LIBS observation of “Switzer Falls,” which is a target on the right-hand rock in the workspace (and in the image), an RMI of “Colby Canyon,” a soft sediment deformation, and “Gould,” which is another target on the boxworks formation. Lastly, Mastcam takes a look at “Potrero John,” yet another interestingly textured rock.
Curiosity will then be ready to drive away. Today’s drive is on slightly better terrain that we have been seeing recently, with fewer large and pointy rocks. Though, the mobility rover planners still have to be careful about picking the safest path through. We’re heading about 25 meters (about 82 feet) to another rock target named “Humber Park,” where we hope to do additional contact science. After the drive, we have our standard set of post-drive imaging, a Mastcam solar tau, and then an early-morning Navcam cloud observation.
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