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Sols 4441-4442: Winter is Coming
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Sols 4445–4446: Cloudy Days are Here
NASA’s Mars rover Curiosity acquired this image showing its left-front wheel and the large rock it ran into (visible at lower left); another rock blocked its right-front wheel (the wheel is visible at the right edge), so the rover paused its drive to await instructions from the mission team on Earth. Curiosity captured the image using its Front Hazard Avoidance Camera (Front Hazcam) on sol 4444, or Martian day 4,444 of the Mars Science Laboratory mission, on Feb. 5, 2025, at 08:38:01 UTC. NASA/JPL-Caltech Earth planning date: Wednesday, Feb. 5, 2025
Overnight before planning today, Mars reached a solar longitude of 40 degrees. The solar longitude is how we like to measure where we are in a Mars year. Each year starts at 0 degrees and advances to 360 degrees at the end of the year. For those of us on the Environmental Science (ENV) team, 40 degrees is a special time as it marks the beginning of our annual Aphelion Cloud Belt (ACB) observation campaign. During this time of year, the northern polar ice cap is emerging into the sunlight, causing it to sublimate away and release water vapor into the atmosphere. At the same time, the atmosphere is generally colder, since Mars is near aphelion (its furthest distance from the Sun).
Together, these two factors mean that Mars’ atmosphere is a big fan of forming clouds during this part of the year. Gale is right near the southern edge of the ACB, so we’re starting to take more cloud movies to study how the ACB changes during the cloudy season. (Jezero Crater, home to Perseverance, is much closer to the heart of the ACB, so keep an eye on their Raw Images page over the next several months as well.
The drive from Monday’s plan ended early, after just about 4 meters instead of the 38 meters that had been planned (about 13 feet vs. 125 feet). We initially thought this might have been because our left-front wheel ran into the side of a large rock (see the image above), but after we got our hands on the drive data, it turned out that the steering motor on the right front wheel indicated that a rock was in the way on that side too, so Curiosity stopped the drive to await further instruction from Earth. This is a well-understood issue, so we should be back on the road headed west today.
The cold weather is still creating power challenges, so we had to carefully prioritize our activities today. Despite the drive fault, we received the good news that it was safe to unstow the arm, so we were able to pack in a full set of MAHLI, APXS, and DRT activities. Before that, though, we start as usual with some remote sensing activities, including ChemCam LIBS and Mastcam observations of “Beacon Hill” (some layered bedrock near the rover) and a ChemCam RMI mosaic of the upper portion of Texoli butte.
After taking a 3½-hour nap to recharge our batteries, we get into the arm activities. These start off with some MAHLI images of the MAHLI and APXS calibration targets, then continue with MAHLI and APXS observations of “Zuma Canyon.” This is followed by DRT, APXS, and MAHLI activities of some bedrock in our workspace, “Bear Canyon.” Although we then take another short nap, we don’t yet stow the arm as we have a pair of lengthy post-sunset APXS integrations. The arm is finally stowed about an hour and a half before midnight.
The second sol of this plan begins with some more remote sensing activities, starting with ChemCam LIBS on “Mission Point”. This is followed by a series of Mastcam images of “Crystal Lake” (polygonal fractures in the bedrock), “Stockton Flat” (fine lamination in the bedrock), “Mount Waterman,” and Mission Point. We then finish with some ENV activities, including a Mastcam tau and Navcam line-of-sight to measure dust in the atmosphere and a Navcam cloud movie. This plan ends with a (hopefully!) lengthy drive west and many hours asleep to recharge our batteries as much as possible before planning starts again on Friday. Of course, I would be remiss if I didn’t mention that REMS, RAD, and DAN continue to diligently monitor the environment throughout this plan.
Written by Conor Hayes, Graduate Student at York University
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Last Updated Feb 06, 2025 Related Terms
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Sols 4443-4444: Four Fours for February
NASA’s Mars rover Curiosity acquired this image from about 25 centimeters (about 10 inches) away from the polygonally-fractured bedrock target named “Coldwater Canyon.” Curiosity captured the image using its Mars Hand Lens Imager (MAHLI), located on the turret at the end of the rover’s robotic arm, on Feb. 2, 2025 — sol 4441, or Martian day 4,441 of the Mars Science Laboratory Mission — at 08:40:11 UTC. NASA/JPL-Caltech/MSSS Earth planning date: Monday, Feb. 3, 2025
Another successful weekend plan left us about 23 meters (about 75 feet) farther down our Mount Sharp Ascent Route (MSAR), with all our science data downlinked to Earth and the planet clocks aligned once more. We only have until 18:26 Pacific time to get this Monday’s plan uplinked (due to the Soliday over the weekend), and two full days of science to plan!
Our first sol science block starts at 12:06 local Gale Crater time, including a ChemCam long-distance RMI mosaic and a five-shot laser on bedrock. After ChemCam is done, Mastcam is planning 42 images, including ChemCam’s LIBS spots, some meteorite fragments, sand troughs between bedrock blocks, and interesting vein structures in our surrounding terrain. Navcam is planning to finish out that science block with a large dust devil survey. After our remote science wraps up, we’ve committed the hours between about 15:00 and 22:45 to our full contact science suite. Luckily, SRAP passed yet again and we took the opportunity to plan two targets — “San Rafael Hills” as our DRT target and “Allison Mine” as a potential meteorite target.
After a nice, long sleep our rover will wake up at 09:53 local Gale time and start another round of remote science to start the sol. This time ChemCam will shoot their laser at the potential meteorite and contact target Allison Mine, with Mastcam following up to document the spots. After one last 20-minute sweep of Texoli butte through Mastcam, it’s time to pack up and head back down the MSAR. Hopefully our drive goes well again and we’ll find ourselves about 36 meters (about 118 feet) away on Wednesday!
Written by Natalie Moore, Mission Operations Specialist at Malin Space Science Systems
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Sols 4439-4440: A Lunar New Year on Mars
NASA’s Mars rover Curiosity captured this image, which includes the prominent wedge-shaped block in the foreground, the imaging target dubbed “Vasquez Rocks” — named after a site in Southern California that’s been a popular filming location for movies and television, including several episodes of “Star Trek.” Curiosity acquired this image using its Left Navigation Camera on sol 4437 — Martian day 4,437 of the Mars Science Laboratory mission — on Jan. 29, 2025, at 04:25:25 UTC. NASA/JPL-Caltech Earth planning date: Wednesday, Jan. 29, 2025
We’re planning sols 4439 and 4440 on the first day of the Lunar New Year here on Earth, and I’m the Geology/Mineralogy Science Theme Lead for today. The new year is a time for all kinds of abundance and good luck, and we are certainly lucky to be celebrating another new year on Mars with the Curiosity rover!
The rover’s current position is on the north side of the “Texoli” butte west of the “Rustic Canyon” crater, and we are on our way southwest through the layered sulfate unit toward a possible boxwork structure that we hope to study later this year. Today’s workspace included a couple of representative bedrock blocks with contrasting textures, so we planned an APXS elemental chemistry measurement on one (“Deer Springs”) and a LIBS elemental measurement on another (“Taco Peak”).
For imaging, there were quite a few targets in view making it possible to advance a variety of science goals. The ChemCam remote imager was used for a mosaic on “Wilkerson Butte” to observe the pattern of resistant and recessive layering. Mastcam mosaics explored some distant landforms (“Sandstone Peak,” “Wella’s Peak”) as well as fractures, block shapes and textures, and aeolian ripples closer to the rover (“Tahquitz Peak,” “Mount Islip,” “Vasquez Rocks,” “Dawson Saddle”). Our regular environmental science measurements were made as well, to track atmospheric opacity and dust activity. So our planning sols include an abundance of targets indeed.
Fun fact: Today’s name “Vasquez Rocks” comes from a site on Earth in Southern California that has been a popular spot for science fiction filming, appearing in several episodes of “Star Trek” going back to the original series!
Written by Lucy Lim, Participating Scientist at Goddard Space Flight Center
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Sols 4437-4438: Coordinating our Dance Moves
NASA’s Mars rover Curiosity acquired this image using its Left Navigation Camera on sol 4435 — Martian day 4,435 of the Mars Science Laboratory mission — on Jan. 27, 2025, at 02:23:35 UTC. NASA/JPL-Caltech Earth planning date: Monday, Jan. 27, 2025
I was Geology and Mineralogy (Geo) Science Team lead today, and my day started with a bang and a drum roll — delivered by a rare winter thunderstorm (rare here in England, at least). I did lose power for a few minutes, but thanks to laptop batteries and phone Wi-Fi, I think no one noticed … so, shhh, don’t tell the boss!
Planning was especially interesting as we had a decision to make, whether we want to align ChemCam and APXS observations with each other and focus on one target, or whether we want two different targets. As Geo Science Team lead, it is my role to facilitate this discussion, but that is always fun — and easy. Many colleagues come with well-prepared reasons for why they want to have a certain observation in today’s plan, and I always learn something new about Mars, or geology, or both when those discussions happen. Weighing all arguments carefully, we decided for the coordinated dance of contact and remote science observations on a bedrock target we named “Desert View.” APXS will start the dance, followed by ChemCam active and one RMI image on the same location. Closing out the dance will be MAHLI, by imaging the APXS target that at this point will have the laser pits.
Such a coordinated observation will allow us to see how the rock reacts to the interaction with the laser. We have done this many times, and often learnt interesting things about the mineralogy of the rock. But more than 10 years ago, there was an even more ambitious coordination exercise: On sol 687 the imaging on a target called “Nova” was timed so that Mastcam actually captured the laser spark in the image. While that’s useful for engineering purposes, as a mineralogist I want to see the effect on the rock. Here is the result of that “spark” on target Nova on sol 687.
But back to today’s planning. Apart from the coordinated observations, ChemCam also adds to the Remote Micro Imager coverage of Gould Mesa with a vertical RMI observation that is designed to cover all the nice layers in the mesa, just like a stratigraphic column. Mastcam is looking back at the Rustic Canyon crater to get a new angle. Craters are three-dimensional and looking at it from all sides will help decipher the nature of this small crater, and also make full use of the window into the underground that it offers. Mastcam has two more mosaics, “Condor Peak” and “Boulder Basin,” which are both looking at interesting features in the landscape: Condor Peak at a newly visible butte, and Boulder Basin at bedrock targets in the near-field, to ascertain the structures and textures are still the same as they have been, or document any possible changes. Mars has surprised us before, so we try to look as often as power and other resources allow, even if only to confirm that nothing has changed. You can see the blocks that we are using for this observation in the grayscale Navigation Camera image above; we especially like it when upturned blocks give us a different view, while flat lying blocks in the same image show the “regular” perspective.
After the targeted science is completed, the rover will continue its drive along the planned route, to see what Mars has to offer on the next stop. After the drive, MARDI will take its image, and ChemCam do an autonomous observation, picking its own target. Also after the drive is a set of atmospheric observations to look at dust levels and search for dust devils. Continuous observations throughout include the DAN instrument’s observation of the surface and measurements of wind and temperature.
With that, the plan is again making best use of all the power we have available… and here in England the weather has improved, inside my power is back to normal, and outside it’s all back to the proverbial rain this small island is so famous for.
Written by Susanne Schwenzer, Planetary Geologist at The Open University
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The 2024 Annual Highlights of Results from the International Space Station is coming soon. This new edition contains updated bibliometric analyses, a list of all the publications documented in fiscal year 2024, and synopses of the most recent and recognized scientific findings from investigations conducted on the space station. These investigations are sponsored by NASA and all international partners – CSA (Canadian Space Agency), ESA (European Space Agency), JAXA (Japan Aerospace Exploration Agency), and the State Space Corporation Roscosmos (Roscosmos) – for the advancement of science, technology, and education.
Dr. Dmitry Oleynikov remotely operates a surgical robot aboard the Space Station using controls at the Virtual Incision offices in Lincoln, Nebraska. Robotic Surgery Tech Demo tests techniques for performing a simulated surgical procedure in microgravity using a miniature surgical robot that can be remotely controlled from Earth. Credits: University of Nebraska-Lincoln Between Oct. 1, 2023, and Sept. 30, 2024, more than 350 publications were reported. With approximately 40% of the research produced in collaboration between more than two countries and almost 80% of the high-impact studies published in the past seven years, station has continued to generate compelling and influential science above national and global standards since 2010.
The results achieved from station research provide insights that advance the commercialization of space and benefit humankind.
Some of the findings presented in this edition include:
Improved machine learning algorithms to detect space debris (Italian Space Agency) Visuospatial processing before and after spaceflight (CSA) Metabolic changes during fasting intervals in astronauts (ESA) Vapor bubble production for the improvement of thermal systems (NASA) The survival of microorganisms in space (Roscosmos) Immobilization of particles for the development of optical materials (JAXA) The content in the Annual Highlights of Results from the International Space Station has been reviewed and approved by the International Space Station Program Science Forum, a team of scientists and administrators representing NASA and international partners that are dedicated to planning, improving, and communicating the research operated on the space station.
For the Annual Highlights of Results 2023, click here.
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