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By NASA
NASA/Jonny Kim NASA astronaut Zena Cardman processes bone cell samples inside the Kibo laboratory module’s Life Science Glovebox on Aug. 28, 2025, as part of an experiment that tests how microgravity affects bone-forming and bone-degrading cells and explore potential ways to prevent bone loss. This research could help protect astronauts on future long-duration missions to the Moon and Mars, while also advancing treatments for millions of people on Earth who suffer from osteoporosis.
Image credit: NASA/Jonny Kim
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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
Curiosity Blog, Sols 4655-4660: Boxworks With a View
NASA’s Mars rover Curiosity acquired this image, showing the boxwork terrain in the foreground and the bright wind-sculpted material in the distance, on Sept. 12, 2025. Curiosity used its Right Navigation Camera on Sol 4657, or Martian day 4,657 of the Mars Science Laboratory mission, at 00:50:58 UTC. NASA/JPL-Caltech Written by Sharon Wilson Purdy, Planetary Geologist at the Smithsonian National Air and Space Museum
Earth planning date: Friday Sept. 12, 2025
Curiosity continues to image, analyze, and traverse through a landscape characterized by higher standing ridges separating low-lying depressions (hollows) — a surface known as the boxwork terrain on Mount Sharp. The science team is actively characterizing the texture, chemistry, and mineralogy of the ridges and hollows to understand how this surface formed and changed over time. I served as the Geology theme group “Keeper of the Plan” for Sols 4656-4657 where I compiled the details for each scientific activity that will be carried out by the rover. I selected the particular Navcam image accompanying this blog post because it not only shows the intriguing boxwork terrain beneath our wheels but also highlights the striking wind-sculpted yardangs on our exciting route ahead.
Our successful drive over the weekend set us up nicely to investigate the bedrock ridge in the workspace directly in front of the rover on Sol 4655. The target “Chango” was selected for closer inspection with the dust removal tool (DRT) and APXS and MAHLI instruments. ChemCam used its LIBS instrument to analyze the chemistry of a bedrock ridge at the “Quechua” target, and Mastcam and ChemCam included several mosaics to document walls of nearby hollow interiors, fractures, and the hollow-to-ridge transitions.
The plan for Sols 4656-4657 focused on a variety of remote sensing activities including a 360-degree mosaic by Mastcam — one of the most spectacular data products! ChemCam investigated the local bedrock and a raised resistant bedrock feature at “Chita” and “Chaco,” respectively, and then turned its sights to the distant floor of Gale crater to image features that may have formed when water eroded material from the interior walls of the crater rim.
Planning on Friday for Sols 4658-4660 included three targeted science blocks to dig deeper into the boxwork unit. ChemCam LIBS will analyze the bedrock at targets “Tarata” and “El Sombrio” and a rock that does not look like typical bedrock at “Cobres.” The Mastcam team assembled multiple images and mosaics that will help decipher the distribution of veins, fractures, and nodules (somewhat rounded features) in the bedrock, as well as small sand dunes in and around the workspace. The environmental theme group worked throughout the week to monitor clouds and dust-devil activity, and planned Mastcam tau observations to assess the optical depth of the atmosphere and constrain aerosol scattering properties.
Want to read more posts from the Curiosity team?
Visit Mission Updates
Want to learn more about Curiosity’s science instruments?
Visit the Science Instruments page
NASA’s Mars rover Curiosity at the base of Mount Sharp NASA/JPL-Caltech/MSSS Share
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Last Updated Sep 15, 2025 Related Terms
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By NASA
A SpaceX Falcon 9 rocket carrying Northrop Grumman’s Cygnus XL spacecraft is launched on NASA’s Northrop Grumman Commercial Resupply Services 23 mission to the International Space Station on Sunday, Sept. 14, 2025.Credit: NASA NASA is sending more science, technology demonstrations, and crew supplies to the International Space Station following the successful launch of the agency’s Northrop Grumman Commercial Resupply Services 23 mission, or Northrop Grumman CRS-23.
The company’s Cygnus XL spacecraft, carrying more than 11,000 pounds of cargo to the orbiting laboratory, lifted off at 6:11 p.m. EDT Sunday on a SpaceX Falcon 9 rocket from Space Launch Complex 40 at Cape Canaveral Space Force Station in Florida. This mission is the first flight of the larger, more cargo-capable version of the solar-powered spacecraft.
Cygnus XL is scheduled to be captured at 6:35 a.m. on Wednesday, Sept. 17, by the Canadarm2 robotic arm, which NASA astronaut Jonny Kim will operate with assistance from NASA astronaut Zena Cardman. Following capture, the spacecraft will be installed to the Unity module’s Earth-facing port for cargo unloading.
The resupply mission is carrying dozens of research experiments that will be conducted during Expedition 73, including materials to produce semiconductor crystals in space and equipment to develop improvements for cryogenic fuel tanks. The spacecraft also will deliver a specialized UV light system to prevent the growth of microbe communities that form in water systems and supplies to produce pharmaceutical crystals that could treat cancer and other diseases.
These are just a sample of the hundreds of scientific investigations conducted aboard the station in the areas of biology and biotechnology, Earth and space science, physical sciences, as well as technology development and demonstrations. For nearly 25 years, NASA has supported a continuous U.S. human presence aboard the orbiting laboratory, where astronauts have learned to live and work in space for extended periods of time. The space station is a springboard for developing a low Earth economy and NASA’s next great leaps in exploration, including Artemis missions to the Moon and American astronaut missions to Mars.
NASA’s arrival, capture, and installation coverage are as follows (all times Eastern and subject to change based on real-time operations):
Wednesday, Sept. 17
5 a.m. – Arrival coverage begins on NASA+, Amazon Prime, and more.
6:35 a.m. – Capture of Cygnus XL with the space station’s robotic arm.
8 a.m. – Installation coverage begins on NASA+, Amazon Prime, and more.
All coverage times are estimates and could be adjusted based on operations after launch. Follow the space station blog for the most up-to-date information.
Cygnus XL is scheduled to remain at the orbiting laboratory until March 2026, before it departs and disposes of several thousand pounds of trash through its re-entry into Earth’s atmosphere, where it will harmlessly burn up. The spacecraft is named the S.S. William “Willie” C. McCool, in honor of the NASA astronaut who perished in 2003 during the space shuttle Columbia accident.
Learn more about this NASA commercial resupply mission at:
https://www.nasa.gov/mission/nasas-northrop-grumman-crs-23/
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Josh Finch / Jimi Russell
Headquarters, Washington
202-358-1100
joshua.a.finch@nasa.gov / james.j.russell@nasa.gov
Steven Siceloff
Kennedy Space Center, Fla.
321-876-2468
steven.p.siceloff@nasa.gov
Sandra Jones / Joseph Zakrzewski
Johnson Space Center, Houston
281-483-5111
sandra.p.jones@nasa.gov / joseph.a.zakrzewski@nasa.gov
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Last Updated Sep 14, 2025 LocationNASA Headquarters Related Terms
International Space Station (ISS) Commercial Resupply ISS Research Johnson Space Center Northrop Grumman Commercial Resupply View the full article
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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
Curiosity Blog, Sols 4649-4654: Ridges, Hollows and Nodules, Oh My
NASA’s Mars rover Curiosity acquired this image using its Left Navigation Camera, showing the transition from smoother ridge bedrock (right) to more nodular bedrock (bottom left to top middle) on the edge of a shallow hollow (top left). Curiosity, whose masthead shadow is also visible, captured this image on Sept. 5, 2025 — Sol 4650, or Martian day 4,650 of the Mars Science Laboratory mission — at 00:22:34 UTC. NASA/JPL-Caltech Written by Lucy Thompson, Planetary Scientist and APXS Team Member, University of New Brunswick, Canada
Earth planning date: Friday, Sept. 5, 2025
Curiosity is in the midst of the boxwork campaign, trying to decipher why we see such pronounced ridges and hollows in this area of Mount Sharp. When this terrain was first identified from orbit it was hypothesized that the ridges may be the result of cementation by circulating fluids, followed by differential erosion of the less resistant bedrock in between (the hollows that we now observe).
We have been exploring the boxwork terrain documenting textures, structures and composition to investigate potential differences between ridges and hollows. One of the textural features we have observed are nodules in varying abundance. The focus of our activities this week was to document the transition from smoother bedrock atop a boxwork ridge to more nodular bedrock associated with the edge of a shallow hollow.
In Tuesday’s three-sol plan we analyzed the smoother bedrock within the ridge, documenting textures with MAHLI, Mastcam, and ChemCam RMI, and chemistry with ChemCam LIBS and APXS. Curiosity then successfully bumped towards the edge of the ridge/hollow to place the more nodular bedrock in our workspace. Friday’s three-sol plan was basically a repeat of the previous observations, but this time focused on the more nodular bedrock. The planned drive should take us to another boxwork ridge, and closer to the area where we plan to drill into one of the ridges.
As the APXS strategic planner this week, I helped to select the rock targets for analysis by our instrument, ensuring they were safe to touch and that they met the science intent of the boxwork campaign. I also communicated to the rest of the team the most recent results from our APXS compositional analyses and how they fit into our investigation of the boxwork terrain. This will help to inform our fast-approaching decision about where to drill.
Both plans included Mastcam and ChemCam long-distance RMI imaging of more distant features, including other boxwork ridges and hollows, buttes, the yardang unit, and Gale crater rim. Planned environmental activities continue to monitor dust in the atmosphere, dust-devil activity, and clouds. Standard REMS, RAD, and DAN activities round out the week’s activities.
Want to read more posts from the Curiosity team?
Visit Mission Updates
Want to learn more about Curiosity’s science instruments?
Visit the Science Instruments page
NASA’s Mars rover Curiosity at the base of Mount Sharp NASA/JPL-Caltech/MSSS Share
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Last Updated Sep 12, 2025 Related Terms
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