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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
Curiosity Blog, Sols 4616-4617: Standing Tall on the Ridge
NASA’s Mars rover Curiosity acquired this image, showing the impressive landscape it is currently navigating. The rover is standing tall on the ridge, its shadow casting forward, and Mount Sharp towers over the scene in the distance. Curiosity captured this image with its Front Hazard Avoidance Camera (Front Hazcam) on July 30, 2025 — Sol 4614, or Martian day 4,614 of the Mars Science Laboratory mission — at 02:24:02 UTC. NASA/JPL-Caltech Written by Susanne P. Schwenzer, Professor of Planetary Mineralogy at The Open University, UK
Earth planning date: Wednesday, July 30, 2025
The day started with a little celebration of NISAR, a new Earth observation satellite that made it successfully into orbit a few hours before our planning started. We joined in by saying “GO NISAR, NASA, JPL, and ISRO” (the Indian Space Research Organisation, NASA’s mission partner, which launched NISAR). Learn more at the NISAR mission hub. Although our team studies Mars, Earth is a planet, too, and we are very happy for our colleagues’ successful launch!
On Mars, it’s still winter and the topic of every planning is how to maximize the science we can do given the increased power needs for heating our rover at this time of the year. Curiosity is parked on top of the main ridge, nicknamed the “autobahn.” It turned out to be not as smooth as its terrestrial namesake, as you can see in the image above. To arrive at this parking position, our rover drivers decided to take a small detour down into a flatter area and back up onto the ridge for safe off-road driving. The rover’s parking position allows for beautiful views around us, laying out the land of hollows and ridges perfectly to plan our next steps and to admire Mount Sharp in the distance.
Standing tall on the ridge, we got several investigations of the ridge-forming materials into today’s plan. APXS, MAHLI, and ChemCam are all teaming up to investigate the target “El Salto.” This is a target that could get us a glimpse into what formed the central line that is running along the big ridge. If you look closely at the images there are subtle differences in color and texture, and we are all curious whether that translates to chemical differences, too.
Of course, it’s not all about chemistry. Mastcam is busy documenting a small mound, and its context with veins and the hollow surrounding it, at the target “Llullaillaco.” The target “Cementerio De Tortugas” will capture sand ripples within a trough area, there is an extension of the workspace imaging in the plan for more context of today’s observations, and finally the ridge intersection is of interest at the target “Villa Abecia.” Of course, Mastcam didn’t forget the documentation of the ChemCam target “El Salto” and the AEGIS target from the last plan. Speaking of ChemCam: It’s using its imaging capabilities to document the side of the ridge to give finer details of the sedimentary structures of the target “Llullaillaco.”
Atmospheric observations are also of highest interest at this time of the day. We continue our atmospheric monitoring by looking for dust devils as well as up toward the clouds in a joint observation with the CASSIS instrument, which is aboard the European Space Agency’s Trace Gas Orbiter. In addition, Curiosity continues to monitor wind and temperature throughout the plan, and the DAN (dynamic albedo of neutrons) instrument observes the rocks underneath the rover for their water content.
After completing the observations at the current parking location, Curiosity will be driving off the ridge again, but this time to stay within the hollow, so we can make observations of the material that forms those hollows. Let’s see if we can find any chemical differences between those materials that might explain why one is standing up tall and the other one is weathering out. If you want to get a better impression of what I am talking about when I say ridges and troughs, have a look at this recent navigation camera mosaic.
Learn more about Curiosity’s science instruments
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Last Updated Aug 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
Curiosity Blog, Sols 4614-4615: Driving Along the Boxwork
NASA’s Mars rover Curiosity acquired this image, looking out in the direction from where it came, with the rover’s tracks visible through the dust and sand covering the ground. Curiosity acquired this image using its Left Navigation Camera on July 28, 2025 — Sol 4612, or Martian day 4,612 of the Mars Science Laboratory mission — at 00:27:23 UTC. NASA/JPL-Caltech Written by Conor Hayes, Graduate Student at York University
Earth planning date: Monday, July 28, 2025
Today was a pretty straightforward day of planning. Our drive over the weekend completed successfully, and we quickly confirmed that we are parked in a stable position. Thus, we were able to unstow the rover’s arm to poke around in our new workspace, which features a large sand-filled fracture. Aside from all of the good geology work to be done, the view from our current location is quite spectacular.
We’re still in the time of year where the atmosphere at Gale is reasonably dust-free (at least, compared to later in the year), allowing us to look all the way out to and beyond the Gale crater rim. The upper slopes of Mount Sharp have also re-emerged to our east after spending months hidden behind the walls of Gediz Vallis. There’s a bit more sand and dust in this location than we’ve seen recently, so we can also see the trail left behind by the rover’s wheels as we drove to this location (see the image above).
We’re still deep in our examination of the boxwork structures that we’re now driving through, so most of Curiosity’s attention in this plan is focused much closer to the rover than any of the scenic vista surrounding us. APXS, DRT, and MAHLI will all take a look at “Cañón de Palca,” some bedrock close to the large fracture in this workspace. Mastcam and ChemCam RMI will image some boxwork ridges at “Caine,” and will also collaborate on imaging of the weekend’s post-drive AEGIS target and a LIBS bedrock target “Doña Ines.” Mastcam’s solo activities include taking a look at some layering at “Paniri butte” and at MAHLI to examine a speck of dust that may have fallen on the lens.
We’ll be driving away from this location along one of the boxwork ridges, which, at about 5 meters (about 16 feet) wide, is more than large enough to fit our car-sized rover. Post-drive activities are largely focused on environmental monitoring, including Navcam line-of-sight and dust-devil surveys to look at dust, and several Navcam cloud movies. As usual, ChemCam will also join the post-drive fun with an AEGIS observation. More environmental monitoring by REMS, RAD, and DAN fill out the remainder of this plan.
Learn more about Curiosity’s science instruments
For more Curiosity blog posts, visit MSL Mission Updates
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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
Curiosity Blog, Sols 4611-4613: Scenic Overlook
NASA’s Mars rover Curiosity acquired this image, sitting on top of the distinctive ridge-and-hollow terrain of the boxwork-forming unit for a panoramic view, on July 24, 2025. Curiosity used its Right Navigation Camera on Sol 4609, or Martian day 4,609 of the Mars Science Laboratory mission, at 21:29:43 UTC. NASA/JPL-Caltech Written by Lucy Lim, Planetary Scientist at NASA’s Goddard Space Flight Center
Earth planning date: Friday, July 25, 2025
A 23-meter drive (about 75 feet) brought Curiosity to today’s planned “look-about” spot. The highlight of the plan will be the 360-degree Mastcam panorama that will document the ridge-and-hollow topography of the boxwork-forming unit we’ve been exploring, in addition to overlying stratigraphy in some of the nearby buttes. The right-angle ridge pattern is quite prominent in the HiRISE orbital imaging, which enabled us to plan for this stop. It has been 70 sols since the last panorama and the rover has driven quite some distance in that time!
Additional detailed imaging was planned with the ChemCam remote imager (RMI) and Mastcam high-resolution M100: mosaics will cover the exposed strata underneath the ridge we’re planning to drive on (“Arequipa Airport”), two linear fractures, one parallel to the large ridge and one cross-cutting it (“Laguna de Salinas” and “Laguna Santa Rosa”), some troughs around a nearby light-toned float block (“Arubai”), and the Uyuni butte in the middle distance.
The bedrock texture here was a noticeable change from the previous workspace, with a knobbly oriented texture interspersed occasionally with platier exposures. Geochemical measurements were planned with the ChemCam LIBS to complement the auto-targeted post-drive AEGIS measurement: “La Coca” on a block that appeared to show unusual colors, and “El Algodón” on a knobbly textured chunk of bedrock. APXS geochemistry was planned with dust removal on the “Yura Tuff” knobbly target and without dust removal on the “Tipnis” target. MAHLI will also provide close-up imaging on the two APXS targets.
For the modern Martian environment, it’s still the cloudy season at Gale so we are planning several cloud-related activities. The Mastcam sky survey will measure abundances of atmospheric dust and water ice, whereas a special cloud altitude observation will include video of clouds and their shadows so that the altitudes and velocities of the clouds and related winds can be calculated. A separate short movie will search for dust lifting (dust devil) activity. Finally, the usual passive REMS and DAN observations will monitor the temperature, humidity, and neutron environment at Curiosity’s current location.
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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
Curiosity Blog, Sols 4609–4610: Recharged and Ready To Roll Onwards
NASA’s Mars rover Curiosity acquired this image showing the boxwork hollow where it is investigating, and the boxwork ridge on the far side of the hollow, using its Left Navigation Camera. Curiosity captured the image on July 20, 2025 — Sol 4605, or Martian day 4,605 of the Mars Science Laboratory mission — at 18:51:55 UTC. NASA/JPL-Caltech Written by Catherine O’Connell-Cooper, Planetary Geologist at University of New Brunswick
Earth planning date: Wednesday, July 23, 2025
For today’s planning, we were in the same workspace as the Monday plan — on purpose! We don’t often have a plan without a drive but in order to allow the battery to recover from some power-hungry SAM atmospheric measurements over the weekend and on Monday, we needed to stay put and skip our usual drive. As a result, we gained a bonus planning cycle at this interesting workspace.
We are in one of the “hollows” between the resistant ridges of the “boxwork” terrain, as you can see in the image for this blog. This made for a quieter Operations day for me as the APXS planner. As Deborah noted in Monday’s blog, we have already gotten three APXS and MAHLI measurements in this workspace, so we didn’t acquire more in this plan.
This morning, we focused on documenting some small light-toned, rounded, white pebbles in the workspace (you can see them in the accompanying Navcam image), which look very different from the underlying bedrock. We used our one ChemCam LIBS analysis for the plan on “Yana Qaqa.” Mastcam will image this pebble, another at “Ojos del Salado,” and a really cool-looking target with a dendritic-looking texture at “Punta de Lobos.”
Further afield, Mastcam will image the adjacent boxwork ridge and hollow in our drive direction, and a series of troughs with raised edges to the right of our current workspace. ChemCam will image a long-distance RMI mosaic of “Cueva de los Vencejos y Murciélagos,” which was imaged by Mastcam on Monday, and also acquire some further images of the “Mishe Mokwa” hill.
We had a bumper couple of sols of atmospheric measurements over the weekend and Monday. Now we revert back to our more normal environmental and atmospheric monitoring. These do not get as much attention sometimes as the amazing images we take of the fascinating rocks we see, but have been taking place consistently and continuously since Curiosity’s landing almost 13 years ago now. This plan includes a series of Navcam movies (suprahorizon, dust devil) and a line-of-sight observation of dust, standard REMS and DAN observations, and two Mastcam tau measurements, looking at dust in the atmosphere.
Our 24-meter drive (almost 79 feet) will take us out of this hollow and back up on top of a ridge. From here, we hope to be able to spy the best driving path through the boxwork. The ridges are up to 5 meters in diameter (about 16 feet), so we are cautiously hopeful that we can just trundle along one of the ridges as we investigate this fascinating terrain.
For more Curiosity blog posts, visit MSL Mission Updates
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