2026-04-29 16:00
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2 min read
Written by Sharon Wilson Purdy, Planetary Geologist at the Smithsonian National Air and Space Museum
Earth planning date: Friday, April 24, 2026
There was excitement in the air as the Curiosity Science Team kicked off a drill campaign at the Atacama site to characterize the first Mount Sharp layered-sulfate bedrock since leaving the boxwork terrain.
Monday was a three-sol plan (4873-4875) where we focused on “drill sol 1” activities that included a pre-load test on our drill target as well as triage contact science. APXS assembled a set of repeated observations on the Atacama drill target, and the coordinated MAHLI images taken with different lighting will provide an opportunity to detect possible changes between the datasets. Mastcam assembled stereo mosaics to document the Atacama drill site, investigate variations in the bedrock at “Kimsa Chata,” and characterize the layering within Paniri butte.
Planning resumed Friday with another three-sol plan (4876-4878) that included the full drill and portion characterization related to “drill sols 2 and 3” activities. Mastcam planned stereo mosaics of rocks in the workspace including a laminated rock with an exposed edge named “Queen of the Andes,” a rock with polygonal fractures that was broken when the rover drove over it named “Curaco,” and more coverage of the “El Almendrillo” target.
Rounding out the plans this week, the Environmental theme group continues to monitor dust in the atmosphere, study cloud movements, and document the presence of dust devils. The rover will also autonomously select two targets to be analyzed by the ChemCam instrument.
Next week we look forward to continuing our drill campaign, where the next step will be delivering a portion of the Atacama target to the ChemMin instrument for analysis. The science team is looking forward to seeing how the mineralogy of the layered sulfate unit here compares to our last drill of the same unit at the Mineral King site, which is nearly 160 meters (525 feet) below our current location!

2026-04-29 20:23

One of the most powerful radar systems ever launched into space has mapped the ground moving beneath one of fastest subsiding capitals in the world: Mexico City. The findings show how quickly and reliably the NISAR (NASA-ISRO Synthetic Aperture Radar) satellite can track real-time changes across Earth’s surface from orbit, unhindered by clouds or vegetation that impede optical sensors and higher-frequency radars.
Home to some 20 million people, the Mexico City area is built atop an aquifer. Extensive groundwater pumping, combined with the weight of urban development, has resulted in the compaction of the ancient lakebed beneath the city for more than a century. An engineer first documented the issue in 1925, and by the 1990s and 2000s, parts of the metropolitan area were sinking by around 14 inches (35 centimeters) per year, damaging infrastructure including the Metro, one of the largest rapid transit systems in the Americas.
Several generations of space-based radar have tracked Mexico City on the move. The NISAR mission, launched in July 2025, is now advancing these efforts, analyzing fast-changing areas that are challenging to survey from space. Capable of working day and night, rain or shine, NISAR’s L-band synthetic aperture radar is designed to track subtle motions such as land sinking and rising, glaciers sliding, and croplands growing, as it passes overhead multiple times a month.
“Images like this confirm that NISAR’s measurements align with expectations,” said Craig Ferguson, deputy project manager at NASA Headquarters in Washington. “NISAR’s long wavelength L-band radar will make it possible to detect and track land subsidence in more challenging and densely vegetated regions such as coastal communities where they may have the compounding effects of both land subsidence and sea level rise.”
The new analysis is based on preliminary measurements taken by NISAR between October 2025 and January 2026, during Mexico City’s dry season. Parts of the region found to be subsiding by more than half an inch (more than 2 centimeters) per month are shown in dark blue. The yellow and red areas are likely residual noise signals that are expected to decrease as NISAR collects more data. The structure near the center of the image is Benito Juarez International Airport, with Lake Nabor Carrillo visible as a dark green oblong to the northeast.
One area landmark — the Angel of Independence along the Paseo de la Reforma — is a visible indicator of subsidence. Built in 1910 to commemorate 100 years of Mexico’s independence, the towering monument stands 114 feet (36 meters) high and has had 14 steps added to its base as the land around it gradually sinks.
“Mexico City is a well-known hot spot when it comes to subsidence, and images like this are just the beginning for NISAR,” said David Bekaert, a project manager at the Flemish Institute for Technological Research and a member of the NISAR science team. “We’re going to see an influx of new discoveries from all over the world, given the unique sensing capabilities of NISAR and its consistent global coverage.”
A joint mission developed by NASA and the Indian Space Research Organisation (ISRO), NISAR launched from Satish Dhawan Space Centre on India’s southeastern coast. Managed by Caltech, NASA’s Jet Propulsion Laboratory in Southern California leads the United States component of the project and provided the satellite’s L-band SAR and antenna reflector. The spacecraft bus and its S-band SAR were provided by ISRO.
The NISAR satellite is the first to carry two SAR instruments at different wavelengths and is monitoring Earth’s land and ice surfaces twice every 12 days, collecting data using the spacecraft’s giant drum-shaped reflector, which measures 39 feet (12 meters) wide — the largest radar antenna reflector NASA has ever sent into space.
To learn more about NISAR, visit:
https://science.nasa.gov/mission/nisar/
Media Contacts
Andrew Wang / Andrew Good
Jet Propulsion Laboratory, Pasadena, Calif.
626-379-6874 / 818-393-2433
andrew.wang@jpl.nasa.gov / andrew.c.good@jpl.nasa.gov
Written by Sally Younger
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2026-04-29 15:28
A luminous swirl set against the deep black of space, the barred spiral galaxy IC 486 glows with a soft, ethereal light in this NASA Hubble Space Telescope image from April 13, 2026.
IC 486 lies right on the edge of the constellation Gemini (the Twins), around 380 million light-years from Earth. Classified as a barred spiral galaxy, it features a bright central bar-shaped structure from which its spiral arms unfurl, wrapping around the core in a smooth, almost ring-like pattern.
Read more about IC 486 and how scientists are studying galaxies using observations like this.
Image credit: ESA/Hubble & NASA, M. J. Koss, A. J. Barth
2026-04-29 15:10
3 min read
NASA and Boeing have completed wind tunnel testing to study an innovative advanced aircraft design intended to improve aerodynamic efficiency.
A truss-braced wing configuration, involving a long, thin wing with aerodynamically shaped structural supports, has the potential to reduce fuel and operational costs for future airliners, which is why NASA has collaborated with Boeing to advance the design.
But this kind of wing would be much more than a simple tweak to existing designs – for an aircraft the size of a passenger jet, it would be a revolutionary redesign, requiring extensive study from NASA and Boeing.
The most recent round of testing used a complex wind tunnel model to collect data on how air flows around a truss-braced wing model and the forces that would be exerted on such a wing in flight.
The test used a semispan model – essentially half an aircraft mounted on a wind tunnel floor. The model has features built in to simulate the mechanisms that increase the amount of lift a wing produces. By adjusting the model’s slats, flaps, and other moving control surfaces, the team can configure it to the low speed, high-lift settings of takeoff and landing conditions.
The model is part of a collaboration to test what’s known as Boeing’s Subsonic Ultra Green Aircraft Research (SUGAR) concept.
In December, teams completed testing of the model wind tunnel operated by the company QinetiQ in Farnborough, England. This large wind tunnel uses pressurized conditions to predict airplane behavior in takeoff and landing conditions.
The large size of the tunnel gives the model fidelity to better predict the behavior of a plane in flight. This capability allowed the team to confidently assess aerodynamic performance.
NASA and Boeing research teams analyzed data in real time to ensure the model performed as expected. Researchers are still reviewing the full results, but the test has already added valuable information to a growing body of research aimed at reducing fuel use in future aircraft designs.
The testing was just the latest stop for this research. NASA and Boeing have tested the concept at multiple NASA facilities to collect data as they work to build a comprehensive understanding of this advanced airframe concept.
This collaboration serves as an example of how NASA serves as an incubator for breakthrough technology with profound commercial applications. The transonic truss-braced wing concept originated from NASA aeronautics-supported research and NASA and Boeing engineers have worked together, test-by-test, to move this wing design from an idea to a practical reality.
The work began in NASA’s Advanced Air Vehicles Program and continues as part of the Subsonic Flight Demonstrator project under the Integrated Aviation Systems Program in the agency’s Aeronautics Research Mission Directorate.
2026-04-29 14:27
Anyone who has seen a launch at NASA’s Kennedy Space Center in Florida knows the agency’s pursuit of the stars involves some smoke and fire. Sometimes, however, the smoke doesn’t come from the rockets that propel astronauts beyond Earth’s bounds.
That was the case during the second weekend of January 2026, when NASA teamed up with the U.S. Fish and Wildlife Service and commercial space partners to intentionally ignite around 2,600 acres of scrub habitat at NASA Kennedy during an active launch countdown, a first for the busiest spaceport in the world.
Staff from NASA Kennedy’s Spaceport Integration Directorate oversaw two prescribed burns conducted by the Service. The larger burn affected around 1,400 acres on the northeast corner of the center, known as Happy Creek — a key habitat for the federally protected Florida scrub-jay and other wildlife that rely on periodic wildfires to thrive.
The other prescribed burn affected a 1,200-acre section east of Kennedy Parkway and south of the center’s industrial zone, near the spaceport’s seven-story headquarters building, as well as iconic facilities critical to NASA’s past and future space efforts like the Neil A. Armstrong Operations and Checkout Building and the Space Systems Processing Facility.
Historically, the center paused launch operations when using fire as a land management tool within NASA Kennedy’s secure area or the Merritt Island National Wildlife Refuge, which surrounds it. However, with Kennedy’s spaceport surpassing 100 successful liftoffs for the first time in 2025, and with the launch cadence expected to continue climbing in the years to come, officials at both agencies recognized the need to adapt.
“As more launches occur at Kennedy, the need for proper land management at the refuge has never been greater,” said Greg Gaddis, the center’s senior operations manager for the spaceport. “We must find new ways to lessen the amount of fire fuel on the ground while also keeping pace with the launch needs of our government and commercial partners. Otherwise, an unexpected lightning bolt or some other fire-starter could be catastrophic for America’s space ambitions, as well as the private space industry.”
The increasing launch cadence is one of many factors the prescribed burn manager — also known as the burn boss — must consider when deciding when and where to conduct a prescribed burn at the spaceport. Another critical factor is weather conditions, especially during Florida’s dry season, where constant breeze from the nearby Atlantic Ocean can quickly turn a small fire into a large one. This could potentially pose a significant risk to plant and animal species at the refuge, as well as to the center’s launch infrastructure.
Safety remains the paramount concern. The center’s Space Operations Office worked directly with the Service and the launch mission partners during the burn.
Prior to the Service setting prescribed burns with air and land resources, Kennedy officials reviewed forecasted wind patterns and developed plans to protect workers in buildings affected by the smoke. The center issued smoke warnings, temporarily relocated some personnel, and allowed others to work remotely during the burns. The smoke also caused intermittent closures of some of the center’s main roads and entrances throughout the weekend for safety reasons.

“To do is to learn, and we all learn each day,” said Shawn Sullivan, assistant fire management officer for the Service’s Region 4 and the designated burn boss. “I stood in awe of the people working around me. To listen to the coordination between specialized groups and witness great individual effort was quite an experience.”
Conducting prescribed burns every two or three years is optimal for maintaining the health and resilience of the refuge, especially for wildlife like the Florida scrub-jay, which has adapted to periodic fires. Determining when and where to conduct these burns is one of the most challenging parts for the burn boss and the officials responsible for operating the spaceport. The amount of vegetation in those areas is often a deciding factor when choosing what to burn.
“We want to make sure those areas don’t get clogged up, making it more difficult for firefighters to gain access if they have to protect launch pads or any other infrastructure from a wildfire,” Gaddis added. “It also leaves less fuel a wildfire can use to grow, and that’s always a big help for first responders working to put a fire out.”
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