Members Can Post Anonymously On This Site
-
Similar Topics
-
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 5 min read
Sols 4473-4474: So Many Rocks, So Many Textures!
NASA’s Mars rover Curiosity acquired this image using its Chemistry & Camera (ChemCam) of a boulder about 40 meters (about 131 feet) away from the rover at the time. Curiosity acquired the image, showing the variety of structures and textures around the rover, on March 5, 2025 — sol 4471, or Martian day 4,471 of the Mars Science Laboratory mission — at 01:47:03 UTC. NASA/JPL-Caltech/LANL Written by Susanne Schwenzer, Planetary Geologist at The Open University
Earth planning date: Wednesday, March 5, 2025
The Martian landscape never ceases to amaze me, there is so much variation in texture and color! As a mineralogist, I marvel at them, but my colleagues trained in sedimentology regularly teach me how to see even more than the beauty of them: they can discern whether the materials that make up a rock were transported and laid down by the action of water or wind. The image above shows a rather unusual texture alongside more normal-looking laminated rocks. Just compare the small, brighter block in the foreground with the darker bigger rock in the center of the image. How should we interpret it? Well, that jury is still out. Are they sedimentary textures formed when the rock first was laid down, or shortly after, or are they textures that formed much later when water entered the rock and formed new minerals in the already existing rock? The latter would be more my area of research, and they are often called concretions. And I vividly remember the first concretions a rover ever found, the “blueberries.” Curiosity, of course, found many concretions, too. There is an interesting comparison between rocks that the Mars Exploration rover Opportunity found, and the one that Curiosity found very early in the mission, back at Yellowknife Bay. We have seen many more since, and the above might be another example.
The landscape directly around the rover today also has some interesting textures and, most important, some more regular-looking bedrock targets. Bedrock is what the team perceives to be the rocks that make up the part of the hill we are driving through. The dark blocks, like the one above, that are also strewn occasionally in the path of the rover are called float rocks, and we always look higher up into the hills to find out where they might have come from. As interesting as all those blocks and boulders are, they pose a huge challenge for the rover drivers. Today, they had managed to get us all the way to the intended stopping point, which in itself is a huge achievement. A mixture of large rocks and sand is just not conducive to any form of travel, and I always wonder how tiring it would be to just walk through the area. But we made it to the intended stopping point, driving just under 20 meters (about 65 feet), as intended. Unfortunately though, one of the rover’s wheels was perched on a rock in ways that posed a risk of dropping off that rock during an arm move. So, as is usual in those cases, we accept that contact science is not possible. The risk would just be too great that the rover moves just at the wrong moment and the arm bumps into the rock that an instrument is investigating at that moment. So, safety first, we decided to keep the arm tucked in and focus on remote science.
The team quickly pivoted to add some remote science to the already existing observations. As you might imagine in a terrain as interesting as this, Mastcam did get a workout. There are seven different observations in the plan! It looks into the distance to the Texoli Butte we are observing as we drive along it, and at a target, “Brown Mountain.” Looking into the many different features are also imaging activities on the targets “Placerita Canyon,” “Humber Park,” and two others just named “trough,” which is a descriptive term for little trough features the team is tracking for a while with the quest to better understand their formation. ChemCam has a LIBS investigation on target “Inspiration Point,” and two long-distance RMI (Remote Micro Imager) observations. One is truly at a long distance on Gould Mesa, another of the mounts we are observing as we go along. There is another RMI activity closer to the rover, to investigate more of those very interesting structures.
We also have environmental observations in the plan, observing the opacity of the atmosphere and of REMS investigations are occurring throughout the plan. REMS is our “weather station” measuring atmospheric pressure, temperature, humidity, winds, and ultraviolet radiation levels. DAN looks at the surface to measure the water and chlorine content in the rocks that the rover traverses over and RAD is looking up to the sky to measure the radiation that reaches the Martian surface. We do not often mention those in our blocks, because we are so used to seeing them there every single sol, doing their job, quietly in the background.
With so much to do, the only remaining question was where to drive. That was discussed at length, weighing the different science reasons to go to places along the path, and after much deliberation we decided to go to one of the float rocks, but reserve the option to make a right turn in the next plan, to get to another interesting place. All those discussions are so important to make sure we are making the most of the power we have at this cold time of the year, and getting all the science we can get. I am excited to see the data from today’s plan… and to find out where we end up. Not with a wheel on a rock, please, Mars — that would be a good start. But if we do, I am absolutely confident there will be lots to investigate anyway!
Share
Details
Last Updated Mar 06, 2025 Related Terms
Blogs Explore More
2 min read Sols 4471-4472: Marching Through the Canyon
Article
1 day ago
2 min read Sols 4468-4470: A Wintry Mix of Mars Science
Article
3 days ago
2 min read Smooshing for Science: A Flat-Out Success
Article
6 days ago
Keep Exploring Discover More Topics From NASA
Mars
Mars is the fourth planet from the Sun, and the seventh largest. It’s the only planet we know of inhabited…
All Mars Resources
Explore this collection of Mars images, videos, resources, PDFs, and toolkits. Discover valuable content designed to inform, educate, and inspire,…
Rover Basics
Each robotic explorer sent to the Red Planet has its own unique capabilities driven by science. Many attributes of a…
Mars Exploration: Science Goals
The key to understanding the past, present or future potential for life on Mars can be found in NASA’s four…
View the full article
-
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 4471-4472: Marching Through the Canyon
NASA’s Mars rover Curiosity acquired this image using its Mast Camera (Mastcam), a close-up of the rover’s Alpha Particle X-Ray Spectrometer (APXS), an instrument that measures the abundance of chemical elements in rocks and soils on the Martian surface. Located on the turret at the end of Curiosity’s robotic arm, APXS is about the size of a cupcake, and this image shows the handwritten markings on the instrument’s sensor head. Curiosity captured this image on March 23, 2024 — sol 4134, or Martian day 4,134 of the Mars Science Laboratory mission — at 21:59:21 UTC. NASA/JPL-Caltech/MSSS Written by Scott VanBommel, Planetary Scientist at Washington University
Earth planning date: Monday, March 3, 2025
Curiosity continued steady progress through the upper sulfate unit and toward its next major science waypoint: the boxwork structures. Our rover is currently driving south through a local canyon between “Texoli” and “Gould Mesa.” This route may expose the same rock layers observed while climbing along the eastern margin of the Gediz Vallis channel, prompting several science activities in today’s plan. With winter still gripping Gale crater and limiting the power available for science, the team carefully balanced a number of priorities.
The weekend’s drive positioned the rover within reach of light-toned laminated bedrock and gray float rock. We kicked off our two-sol plan by removing dust on a representative bedrock target, “Ramona Trail,” before analyzing with APXS and imaging with MAHLI. ChemCam acquired compositional analyses on a laminated gray float rock, “Josephine Peak,” in addition to long-distance images of Texoli. Mastcam documented key features, capturing images of Josephine Peak, Texoli, “Gobblers Knob,” and “Fort Tejon.” In addition to these science-driven images, Mastcam also acquired two images of APXS before a planned drive of about 21 meters (about 69 feet).
As Curiosity continues toward the boxwork structures, the intricate patterns we observe will provide valuable clues about the history of Mars. While the Mastcam images acquired today of the APXS sensor head won’t directly contribute to the boxwork study, they capture a more human aspect of the mission. With each “APXS horseshoe” image, such as the one featured in this blog from sol 4134, hand-written markings on the APXS sensor head appear alongside Martian terrain, a reminder that this incredible journey is driven by the human touch of a dedicated team on Earth who designed, built, and continue to operate this remarkable spacecraft.
Share
Details
Last Updated Mar 05, 2025 Related Terms
Blogs Explore More
2 min read Sols 4468-4470: A Wintry Mix of Mars Science
Article
2 days ago
2 min read Smooshing for Science: A Flat-Out Success
Article
5 days ago
4 min read Sols 4466-4468: Heading Into the Small Canyon
Article
7 days ago
Keep Exploring Discover More Topics From NASA
Mars
Mars is the fourth planet from the Sun, and the seventh largest. It’s the only planet we know of inhabited…
All Mars Resources
Explore this collection of Mars images, videos, resources, PDFs, and toolkits. Discover valuable content designed to inform, educate, and inspire,…
Rover Basics
Each robotic explorer sent to the Red Planet has its own unique capabilities driven by science. Many attributes of a…
Mars Exploration: Science Goals
The key to understanding the past, present or future potential for life on Mars can be found in NASA’s four…
View the full article
-
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 4468-4470: A Wintry Mix of Mars Science
NASA’s Mars rover Curiosity captured this image showing its wheel awkwardly perched atop one of the rocks in this location, as well as the textures of the layered sulfate unit bedrock blocks. The rover used its Left Navigation Camera (Navcam), one of a pair of stereo cameras on either side of the rover’s masthead, to record the image on Feb. 28, 2025, on sol 4466, or Martian day 4,466 of the Mars Science Laboratory mission, at 00:34:10 UTC. NASA/JPL-Caltech Written by Lucy Lim, Planetary Scientist at NASA’s Goddard Space Flight Center
Earth planning date: Friday, Feb. 28, 2025
Curiosity continues to climb roughly southward through the layered sulfate strata toward the “boxwork” features. Although the previous plan’s drive successfully advanced the rover roughly 21 meters southward (about 69 feet), the drive had ended with an awkwardly perched wheel. Because of this, unfortunately it was considered too risky to unstow the arm for contact science in this plan.
Nevertheless the team made the most of the imaging and LIBS observations available from the rover’s current location. A large Mastcam mosaic was planned on the nearby Texoli butte to capture its sedimentary structures from the rover’s new perspective. Toward the west, the boxwork strata exposed on “Gould Mesa” were observed using the ChemCam long-distance imaging capability, with Mastcam providing color context.
Several near-field Mastcam mosaics also captured some bedding and diagenetic structure in the nearby blocks as well as some modern aeolian troughs in the finer-grained material around them.
On the nearby blocks, two representative local blocks (“Gabrelino Trail” and “Sespe Creek”) are to be “zapped” with the ChemCam laser to give us LIBS (laser-induced breakdown spectroscopy) compositional measurements. The original Gabrelino Trail on Earth near the JPL campus is currently closed due to damage from the recent wildfires.
Meanwhile, the season on Mars (L_s ~ 50, or a solar longitude of about 50 degrees, heading into southern winter) has brought with it the opportunity to observe some recurring atmospheric phenomena: It’s aphelion cloud belt season, as well as Hadley cell transition season, during which a more southerly air mass crosses over Gale Crater.
This plan includes an APXS atmospheric observation (no arm movement required!) to measure argon and a ChemCam passive-sky observation to measure O2, which is a small (less than 1%) but measurable component in the Martian atmosphere. Dedicated cloud altitude observations, a phase function sky survey, and zenith and suprahorizon movies have also been included in the plan to characterize the clouds. As usual, the rover also continues to monitor the modern environment with measurements of atmospheric opacity via imaging, temperature, and humidity with REMS, and the local neutron environment with DAN.
Share
Details
Last Updated Mar 04, 2025 Related Terms
Blogs Explore More
2 min read Smooshing for Science: A Flat-Out Success
Article
3 days ago
4 min read Sols 4466-4468: Heading Into the Small Canyon
Article
5 days ago
2 min read Sols 4464-4465: Making Good Progress
Article
5 days ago
Keep Exploring Discover More Topics From NASA
Mars
Mars is the fourth planet from the Sun, and the seventh largest. It’s the only planet we know of inhabited…
All Mars Resources
Explore this collection of Mars images, videos, resources, PDFs, and toolkits. Discover valuable content designed to inform, educate, and inspire,…
Rover Basics
Each robotic explorer sent to the Red Planet has its own unique capabilities driven by science. Many attributes of a…
Mars Exploration: Science Goals
The key to understanding the past, present or future potential for life on Mars can be found in NASA’s four…
View the full article
-
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
Smooshing for Science: A Flat-Out Success
NASA’s Mars Perseverance rover acquired this image using its SHERLOC WATSON camera, located on the turret at the end of the rover’s robotic arm. The view is looking down at a flattened pile of tailings created by the coring of science target “Green Gardens,” so named because it contains serpentine, a mineral often green in color. The rover’s SHERLOC instrument (Scanning Habitable Environments with Raman & Luminescence for Organics & Chemicals) uses cameras, spectrometers, and a laser to search for organics and minerals that have been altered by watery environments and may be signs of past microbial life; in addition to its black-and-white context camera, SHERLOC is assisted by WATSON (Wide Angle Topographic Sensor for Operations and eNgineering), a color camera for taking close-up images of rock grains and surface textures. Perseverance acquired this image on Feb. 20, 2025 — sol 1424, or Martian day 1,424 of the Mars 2020 mission — at the local mean solar time of 13:11:41. This photo was selected by public vote and featured as “Image of the Week” for Week 210 (Feb. 16-22, 2025) of the Perseverance rover mission on Mars. NASA/JPL-Caltech Written by Henry Manelski, Ph.D. student at Purdue University
The Perseverance team is always looking for creative ways to use the tools we have on Mars to maximize the science we do. On the arm of the rover sits the SHERLOC instrument, which specializes in detecting organic compounds and is crucial in our search for signs of past microbial life. But finding these organics isn’t easy. The uppermost surface of most rocks Perseverance finds on Mars have been exposed to ultraviolet rays from the sun and the long-term oxidative potential of the atmosphere, both of which have the potential to break down organic compounds. For this reason, obtaining SHERLOC measurements from a “fresh” rock face is ideal. Last week the rover cored a serpentine-rich rock aptly named “Green Gardens,” resulting in a fresh pile of drill tailings. To get this material ready for the SHERLOC instrument, which requires a smooth area to obtain a measurement, the science team did something for the first time on Mars: We smooshed it!
Using the contact sensor of our sampling system, designed to indicate when our drill is touching a rock as it prepares to take a core, Perseverance pressed down into the tailings pile, compacting it into a flat, stable patch for SHERLOC to investigate. This unorthodox approach worked perfectly! The resulting SHERLOC spectral scan of these fresh tailings — which include serpentine, a mineral of key astrobiological interest — was a success. These flattened drill tailings are a great example of how a bit of out-of-the-box (or out-of-this-world!) thinking helps us maximize science on Mars. With this success behind us, the rover is rolling west toward the heart of “Witch Hazel Hill,” where more ancient rocks — and who knows what surprises — await!
Share
Details
Last Updated Feb 28, 2025 Related Terms
Blogs Explore More
4 min read Sols 4466-4468: Heading Into the Small Canyon
Article
2 days ago
2 min read Sols 4464-4465: Making Good Progress
Article
2 days ago
3 min read Sols 4461-4463: Salty Salton Sea?
Article
3 days ago
Keep Exploring Discover More Topics From NASA
Mars
Mars is the fourth planet from the Sun, and the seventh largest. It’s the only planet we know of inhabited…
All Mars Resources
Explore this collection of Mars images, videos, resources, PDFs, and toolkits. Discover valuable content designed to inform, educate, and inspire,…
Rover Basics
Each robotic explorer sent to the Red Planet has its own unique capabilities driven by science. Many attributes of a…
Mars Exploration: Science Goals
The key to understanding the past, present or future potential for life on Mars can be found in NASA’s four…
View the full article
-
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 4 min read
Sols 4466-4468: Heading Into the Small Canyon
NASA’s Mars rover Curiosity produced this image from its Mars Hand Lens Imager (MAHLI), located on the turret at the end of the rover’s robotic arm. This image is a combination of two MAHLI images, merged on the rover on Feb. 25, 2025 — sol 4464, or Martian day 4,464 of the Mars Science Laboratory mission — at 22:36:53 UTC. NASA/JPL-Caltech/MSSS Written by Susanne Schwenzer, Planetary Geologist at The Open University
Earth planning date: Wednesday, Feb. 26, 2025
The fine detail of the image above reminds us once again that geoscience — on Mars and on Earth — is an observational science. If you look at the image for a few moments, you will see that there are different areas made of different textures. You will also observe that some features appear to be more resistant to weathering than others, and as a consequence stand out from the surface or the rims of the block. Sedimentologists will study this and many other images in fine detail and compare them to similar images we have acquired along the most recent drive path. From that they put together a reconstruction of the environment billions of years in the past: Was it water or wind that laid down those rocks, and what happened next? Many of the knobbly textures might be from water-rock interaction that happened after the initial deposition of the material. We will see; the jury is out on what these details tell us, and we are looking closely at all those beautiful images and then will turn to the chemistry data to understand even more about those rocks.
In the caption of the image above it says “merged” images. This is an imaging process that happens aboard the rover — it takes two (or more) images of the same location on the same target, acquired at different focus positions, and merges them so a wider range of the rock is in focus. This is especially valuable on textures that have a high relief, such as the above shown example. The rover is quite clever, isn’t it?
In today’s plan MAHLI does not have such an elaborate task, but instead it is documenting the rock that the APXS instrument is measuring. The team decided that it is time for APXS to measure the regular bedrock again, because we are driving out of an area that is darker on the orbital image and into a lighter area. If you want, you can follow our progress on that orbital image. (But I am sure many of the regular readers of this blog know that!)
That bedrock target was named “Trippet Ranch.” ChemCam investigates the target “San Ysidro Trail,” which is a grayish-looking vein. As someone interested in water-rock interactions for my research, I always love plans that have the surrounding rock (the APXS target in this case) and the alteration features in the same location. This allows us to tease out which of the chemical components of the rock might have moved upon contact with water, and which ones have not.
As we are driving through very interesting terrain, with walls exposed on the mesas — especially Gould mesa — and lots of textures in the blocks around us, there are many Mastcam mosaics in today’s plan! The mosaics on “Lytle Creek,” “Round Valley,” “Heaton Flat,” “Los Liones,” and the single image on “Mount Pinos” all document this variety of structures, and another mosaic looks right at our workspace. It did not get a nice name as it is part of a series with a more descriptive name all called “trough.” We often do this to keep things together in logical order when it comes to imaging series. The long-distance RMIs in today’s plan are another example of this, as they are just called “Gould,” followed by the sol number they will be taken on — that’s 4466 — and a and b to distinguish the two from each other. Gould Mesa, the target of both of them, exposes many different structures and textures, and looking at such walls — geologists call them outcrops — lets us read the rock record like a history book! And it will get even better in the next few weeks as we are heading into a small canyon and will have walls on both sides. Lots of science to come in the next few downlinks, and lots of science on the ground already! I’d better get back to thinking about some of the data we have received recently, while the rover is busy exploring the ever-changing geology and mineralogy on the flanks of Mount Sharp.
Share
Details
Last Updated Feb 26, 2025 Related Terms
Blogs Explore More
2 min read Sols 4464-4465: Making Good Progress
Article
5 hours ago
3 min read Sols 4461-4463: Salty Salton Sea?
Article
1 day ago
2 min read Gardens on Mars? No, Just Rocks!
Article
4 days ago
Keep Exploring Discover More Topics From NASA
Mars
Mars is the fourth planet from the Sun, and the seventh largest. It’s the only planet we know of inhabited…
All Mars Resources
Explore this collection of Mars images, videos, resources, PDFs, and toolkits. Discover valuable content designed to inform, educate, and inspire,…
Rover Basics
Each robotic explorer sent to the Red Planet has its own unique capabilities driven by science. Many attributes of a…
Mars Exploration: Science Goals
The key to understanding the past, present or future potential for life on Mars can be found in NASA’s four…
View the full article
-
-
Check out these Videos
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.