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'Time travel was just a metaphor for controlling a narrative'
Final call: ESA’s Junior Professional Programme – your portal to space
The deadline to apply for ESA’s Junior Professional Programme (JPP) is fast approaching, with applications closing on 5 June. The JPP is a unique opportunity for recent graduates and early-career professionals to gain hands-on experience at one of the world’s leading space organisations. Successful candidates will work on real ESA projects alongside experienced experts in fields ranging from engineering and science to business and administration. If you are ready to take the first step towards a future in space, don’t miss this opportunity. Submit your application before the 5 June deadline.
SpaceX launches advanced GPS satellite for US Space Force in record-short turnaround
Earth from Space: Cloud-free Iceland
The Habitability of Earth Tells Us the Likelihood of Finding Life Elsewhere
In a universe of a billion galaxies, Earth is the world known to have life. If we're a common example of what happens in the Universe, then our location can tell us something about habitability. A new study is about to flip everything we thought we knew about habitability on its head, examining the potential for life in exotic environments, such as rogue planets, water worlds, and tidally locked planets, and calculate how habitable they would be compared to Earth. As we learn more about these other worlds, if they are more habitable, it can give new predictions.
Elevating Europe in space for fifty years
For half a century, the European Space Agency (ESA) has been serving Europe as its space agency and inspiring its citizens. On 30 May 1975, the ESA Convention was signed by 10 founding Member States and has since now expanded to 23 Member States, three Associate Members, four Cooperating States and a Cooperation Agreement with Canada. This anniversary year provides the opportunity to reflect not only on ESA’s past achievements, but even more so on its future perspectives.
Strange Object is Releasing Regular Blasts of Both X-Rays and Radio Waves
Just when astronomers think they're starting to understand stellar activity, something strange grabs their attention. That's the case with a newly discovered stellar object called ASKAP J1832-0911. It lies about 15,000 light-years from Earth and belongs to a class of stellar objects called "long-period radio transients." That means it emits radio waves that vary in their intensity on a schedule of only 44 minutes per cycle. It does the same thing in X-ray intensities, which is the first time anybody's seen such a thing coupled with long-period radio transits.
Sol 4553: Back to the Boxwork!
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Sol 4553: Back to the Boxwork! NASA’s Mars rover Curiosity acquired this image of its workspace in the “boxwork” terrain area, showing resistant, ridge-like features where it will investigate the targets dubbed “Sisquoc River” and “Palo Verde Mountains.” Curiosity acquired the image using its Left Navigation Camera on May 27, 2025 — Sol 4552, or Martian day 4,552 of the Mars Science Laboratory mission — at 08:38:12 UTC. NASA/JPL-Caltech
Written by Lucy Thompson, Planetary Geologist at University of New Brunswick
Earth planning date: Tuesday, May 27, 2005
We return to planning today after a successful long weekend and about 42 meters of drive distance (about 138 feet). We planned four sols of activities on Friday to keep Curiosity busy, while the U.S.-based science team and engineers took time off yesterday for the Memorial Day holiday. As we got to admire the new workspace and drive direction view in front of the rover this morning, I realized that we have now driven about 35 kilometers (about 22 miles) and climbed more than 850 meters (2,789 feet) in elevation since landing nearly 13 years ago, and we continue to do exciting science on Mars, having recently driven onto new terrain.
The so-called boxwork structures are a series of resistant ridges observed both from orbit and in long-distance rover imaging (see Ashley’s blog here). Not only are the ridges of interest (do they indicate enhanced fluid-flow and cementation?), but the outcrop expression in general changed after we drove over a shallow trough onto the rocks that host the ridges.
This plan will continue characterization of the interesting boxwork terrain. We had an example of a more resistant, ridge-like feature in our workspace today (see accompanying image). The composition of the ridge will be investigated using ChemCam (target “Sisquoc River”) and APXS (target “Palo Verde Mountains”), with accompanying Mastcam and MAHLI images. We will also acquire Mastcam imaging of a trough-like feature surrounding a bedrock slab, as part of our ongoing documentation of such structures, as well as of an apparent resistant boxwork ridge in the distance (“Lake Cachuma”). And a first for our mission, we are planning the longest-distance ChemCam remote imaging mosaic that we will have acquired — 91 kilometers (almost 57 miles) away! The intent is to compare the long-distance view from the ground with HiRISE orbital images in an attempt to create a 3D view. We also managed to squeeze in a Navcam large dust-devil survey before the planned 24-meter drive (about 79 feet). Once we arrive at our new location, MARDI will take an image of the terrain beneath the rover.
The plan is rounded out with the standard REMS, DAN and RAD activities.
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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…
Sol 4553: Back to the Boxwork!
- Curiosity Home
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2 min read
Sol 4553: Back to the Boxwork! NASA’s Mars rover Curiosity acquired this image of its workspace in the “boxwork” terrain area, showing resistant, ridge-like features where it will investigate the targets dubbed “Sisquoc River” and “Palo Verde Mountains.” Curiosity acquired the image using its Left Navigation Camera on May 27, 2025 — Sol 4552, or Martian day 4,552 of the Mars Science Laboratory mission — at 08:38:12 UTC. NASA/JPL-CaltechWritten by Lucy Thompson, Planetary Geologist at University of New Brunswick
Earth planning date: Tuesday, May 27, 2005
We return to planning today after a successful long weekend and about 42 meters of drive distance (about 138 feet). We planned four sols of activities on Friday to keep Curiosity busy, while the U.S.-based science team and engineers took time off yesterday for the Memorial Day holiday. As we got to admire the new workspace and drive direction view in front of the rover this morning, I realized that we have now driven about 35 kilometers (about 22 miles) and climbed more than 850 meters (2,789 feet) in elevation since landing nearly 13 years ago, and we continue to do exciting science on Mars, having recently driven onto new terrain.
The so-called boxwork structures are a series of resistant ridges observed both from orbit and in long-distance rover imaging (see Ashley’s blog here). Not only are the ridges of interest (do they indicate enhanced fluid-flow and cementation?), but the outcrop expression in general changed after we drove over a shallow trough onto the rocks that host the ridges.
This plan will continue characterization of the interesting boxwork terrain. We had an example of a more resistant, ridge-like feature in our workspace today (see accompanying image). The composition of the ridge will be investigated using ChemCam (target “Sisquoc River”) and APXS (target “Palo Verde Mountains”), with accompanying Mastcam and MAHLI images. We will also acquire Mastcam imaging of a trough-like feature surrounding a bedrock slab, as part of our ongoing documentation of such structures, as well as of an apparent resistant boxwork ridge in the distance (“Lake Cachuma”). And a first for our mission, we are planning the longest-distance ChemCam remote imaging mosaic that we will have acquired — 91 kilometers (almost 57 miles) away! The intent is to compare the long-distance view from the ground with HiRISE orbital images in an attempt to create a 3D view. We also managed to squeeze in a Navcam large dust-devil survey before the planned 24-meter drive (about 79 feet). Once we arrive at our new location, MARDI will take an image of the terrain beneath the rover.
The plan is rounded out with the standard REMS, DAN and RAD activities.
Share Details Last Updated May 29, 2025 Related Terms Explore More 3 min read A Dust Devil Photobombs Perseverance!Article
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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…
A Dust Devil Photobombs Perseverance!
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3 min read
A Dust Devil Photobombs Perseverance! Perseverance self portrait, acquired by the WATSON camera on Sol 1500 on Mars. The Bell Island borehole where the rover acquired a sample is visible in the workspace in front of the rover. NASA/JPL-Caltech/MSSS
Written by Athanasios Klidaras, Ph.D. candidate at Purdue University, and Megan Kennedy Wu, Senior Mission Operations Specialist at Malin Space Science Systems
To celebrate her 1,500th Martian day (“Sol”) exploring the red planet, the Perseverance rover used its robotic arm to take a selfie of the rover and the surrounding landscape. But when team members reviewed the photo, they were surprised to find that Perseverance had been photobombed!
As the rover sat at the “Pine Pond” workspace, located on the outer rim of Jezero crater, which it has been exploring for the past several months, the Wide Angle Topographic Sensor for Operations and eNgineering (WATSON) camera on the end of its arm was used to acquire a 59-image mosaic of the rover. This is the fifth “selfie” that Perseverance has acquired since landing on Mars in 2021. The rover’s robotic arm is not visible in the self portrait because — just like a selfie you would take with your own cellphone camera — rover operators make sure not to have the arm get “in the way” of the body of the rover. This is even easier to do on Mars because Perseverance needs to take 59 different images at slightly different arm positions to build up the selfie, and the elbow of the robotic arm is kept out of the way while the images are acquired. You can find more details about the Sol 1500 selfie here, and this YouTube video shows how the rover arm moves when these activities take place.
While snapping away, Perseverance was photobombed by a dust devil in the distance! These are relatively common phenomena both on Mars and in Earth’s desert regions, and form from rising and rotating columns of warm air, which gives the appearance of a dust tornado. Just like many other weather patterns, there is a peak “season” for dust-devil activity, and Jezero crater is in the peak of that season now (late northern spring). The one seen in the selfie is fairly large, about 100 meters, or 328 feet, across. While Perseverance regularly monitors the horizon for dust-devil activity with Navcam movies, this is the first time the WATSON camera on the end of the robotic arm has ever captured an image of a dust devil!
The dark hole in front of the rover, surrounded by gray rock powder created during the drilling process, shows the location of Perseverance’s 26th sample. Nicknamed “Bell Island” after an island near Newfoundland, Canada, this rock sample contains small spherules, thought to have formed by volcanic eruptions or impacts early in Martian history. Later, this ancient rock was uplifted during the impact that formed Jezero crater. Now that the rover has successfully acquired the spherule sample the science team was searching for, Perseverance is leaving the area to explore new rock exposures. Last week, the rover arrived at an exposure of light-toned bedrock called “Copper Cove,” and the science team was interested to determine if this unit underlies or overlies the rock sequence explored earlier. After performing an abrasion to get a closer look at the chemistry and textures, the rover drove south to scout out more sites along the outer edge of the Jezero crater rim.
Learn more, and see more detailed views of Perseverance’s ‘Selfie With Dust Devil’
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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…
A Dust Devil Photobombs Perseverance!
- Perseverance Home
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- News and Features
- Multimedia
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- Mars Home
3 min read
A Dust Devil Photobombs Perseverance! Perseverance self portrait, acquired by the WATSON camera on Sol 1500 on Mars. The Bell Island borehole where the rover acquired a sample is visible in the workspace in front of the rover. NASA/JPL-Caltech/MSSSWritten by Athanasios Klidaras, Ph.D. candidate at Purdue University, and Megan Kennedy Wu, Senior Mission Operations Specialist at Malin Space Science Systems
To celebrate her 1,500th Martian day (“Sol”) exploring the red planet, the Perseverance rover used its robotic arm to take a selfie of the rover and the surrounding landscape. But when team members reviewed the photo, they were surprised to find that Perseverance had been photobombed!
As the rover sat at the “Pine Pond” workspace, located on the outer rim of Jezero crater, which it has been exploring for the past several months, the Wide Angle Topographic Sensor for Operations and eNgineering (WATSON) camera on the end of its arm was used to acquire a 59-image mosaic of the rover. This is the fifth “selfie” that Perseverance has acquired since landing on Mars in 2021. The rover’s robotic arm is not visible in the self portrait because — just like a selfie you would take with your own cellphone camera — rover operators make sure not to have the arm get “in the way” of the body of the rover. This is even easier to do on Mars because Perseverance needs to take 59 different images at slightly different arm positions to build up the selfie, and the elbow of the robotic arm is kept out of the way while the images are acquired. You can find more details about the Sol 1500 selfie here, and this YouTube video shows how the rover arm moves when these activities take place.
While snapping away, Perseverance was photobombed by a dust devil in the distance! These are relatively common phenomena both on Mars and in Earth’s desert regions, and form from rising and rotating columns of warm air, which gives the appearance of a dust tornado. Just like many other weather patterns, there is a peak “season” for dust-devil activity, and Jezero crater is in the peak of that season now (late northern spring). The one seen in the selfie is fairly large, about 100 meters, or 328 feet, across. While Perseverance regularly monitors the horizon for dust-devil activity with Navcam movies, this is the first time the WATSON camera on the end of the robotic arm has ever captured an image of a dust devil!
The dark hole in front of the rover, surrounded by gray rock powder created during the drilling process, shows the location of Perseverance’s 26th sample. Nicknamed “Bell Island” after an island near Newfoundland, Canada, this rock sample contains small spherules, thought to have formed by volcanic eruptions or impacts early in Martian history. Later, this ancient rock was uplifted during the impact that formed Jezero crater. Now that the rover has successfully acquired the spherule sample the science team was searching for, Perseverance is leaving the area to explore new rock exposures. Last week, the rover arrived at an exposure of light-toned bedrock called “Copper Cove,” and the science team was interested to determine if this unit underlies or overlies the rock sequence explored earlier. After performing an abrasion to get a closer look at the chemistry and textures, the rover drove south to scout out more sites along the outer edge of the Jezero crater rim.
Learn more, and see more detailed views of Perseverance’s ‘Selfie With Dust Devil’
Share Details Last Updated May 30, 2025 Related Terms Explore More 2 min read Sols 4554–4555: Let’s Try That One Again…
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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…
NASA Tech Gives Treadmill Users a ‘Boost’
2 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater) Boost Treadmills cofounder Sean Whalen runs on the Boost 2. The treadmill uses air pressure to counter gravity, making running possible for people with injuries and other conditions.Credit: Boost Treadmills LLC
The antigravity treadmill, which has benefits in space and on Earth, was pioneered by Robert Whalen at NASA’s Ames Research Center in Silicon Valley, California, in the 1980s and ’90s.
Whalen built a system that placed a pressurized bulb over the user’s upper body, creating downward pressure that could simulate gravity for astronauts running on a treadmill in space. With support from Ames, he prototyped a treadmill in his garage that reversed the concept, with the bubble enclosing the user from the waist down to create lift. He thought the system could help patients rehabilitate.
Years later, his son recalled the prototype in the garage and turned it into the AlterG concept. The AlterG treadmill, which uses air pressure to take weight off the user, had proven popular with professional sports teams and rehabilitation clinics, but Whalen and his friends wanted to make it affordable enough for home use, so they founded Boost Treadmills in 2017.
Now Boost, based in Palo Alto, California, has cut the price of an antigravity treadmill by almost two thirds. In 2022, the company released the Boost 2, which is quieter and more energy-efficient than its predecessor, among other improvements. The Boost 2 has roughly tripled sales to individuals, progressing on the company’s goal of moving into the home.
Offloading weight during exercise is a clear solution for patients whose injuries prevent them from walking or running at their full weight, but Boost says it can be equally valuable for people with long-term mobility impairments, such as obesity or arthritis.
Advanced through NASA, the antigravity treadmill is one of many space-inspired technologies benefitting life on Earth.
Read More Share Details Last Updated May 30, 2025 Related Terms Explore More 3 min read Winners Announced in NASA’s 2025 Gateways to Blue Skies Competition Article 2 weeks ago 3 min read Meet Four NASA Inventors Improving Life on Earth and Beyond Article 3 weeks ago 2 min read NASA Technology Enables Leaps in Artificial IntelligenceArtificial intelligence lets machines communicate autonomously
Article 1 month ago Keep Exploring Discover Related TopicsMissions
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NASA Tech Gives Treadmill Users a ‘Boost’
2 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater) Boost Treadmills cofounder Sean Whalen runs on the Boost 2. The treadmill uses air pressure to counter gravity, making running possible for people with injuries and other conditions.Credit: Boost Treadmills LLCThe antigravity treadmill, which has benefits in space and on Earth, was pioneered by Robert Whalen at NASA’s Ames Research Center in Silicon Valley, California, in the 1980s and ’90s.
Whalen built a system that placed a pressurized bulb over the user’s upper body, creating downward pressure that could simulate gravity for astronauts running on a treadmill in space. With support from Ames, he prototyped a treadmill in his garage that reversed the concept, with the bubble enclosing the user from the waist down to create lift. He thought the system could help patients rehabilitate.
Years later, his son recalled the prototype in the garage and turned it into the AlterG concept. The AlterG treadmill, which uses air pressure to take weight off the user, had proven popular with professional sports teams and rehabilitation clinics, but Whalen and his friends wanted to make it affordable enough for home use, so they founded Boost Treadmills in 2017.
Now Boost, based in Palo Alto, California, has cut the price of an antigravity treadmill by almost two thirds. In 2022, the company released the Boost 2, which is quieter and more energy-efficient than its predecessor, among other improvements. The Boost 2 has roughly tripled sales to individuals, progressing on the company’s goal of moving into the home.
Offloading weight during exercise is a clear solution for patients whose injuries prevent them from walking or running at their full weight, but Boost says it can be equally valuable for people with long-term mobility impairments, such as obesity or arthritis.
Advanced through NASA, the antigravity treadmill is one of many space-inspired technologies benefitting life on Earth.
Read More Share Details Last Updated May 30, 2025 Related Terms Explore More 3 min read Winners Announced in NASA’s 2025 Gateways to Blue Skies Competition Article 2 weeks ago 3 min read Meet Four NASA Inventors Improving Life on Earth and Beyond Article 3 weeks ago 2 min read NASA Technology Enables Leaps in Artificial IntelligenceArtificial intelligence lets machines communicate autonomously
Article 1 month ago Keep Exploring Discover Related TopicsMissions
Humans in Space
Technology Transfer & Spinoffs
Tranquility Module
45 Years Ago: NASA Announces Ninth Astronaut Group
45 Years Ago: NASA Announces Ninth Astronaut Group
Nearly all of NASA’s ninth class of astronaut candidates, along with two European trainees, poses for photos in the briefing room in the public affairs facility at NASA’s Johnson Space Center in Houston on July 7, 1980.
Group 9 was announced on May 29, 1980; the candidates would go on to make history in spaceflight and at NASA. For example, Charles Bolden (kneeling at far right) traveled to orbit four times aboard the space shuttle between 1986 and 1994, then became the agency’s first African American administrator in 2009. Franklin Chang-Diaz (fifth from the right, standing) was the first Hispanic American to fly in space and Jerry Ross (middle, standing in the back) was the first person to be launched into space seven times.
Image credit: NASA
45 Years Ago: NASA Announces Ninth Astronaut Group
Nearly all of NASA’s ninth class of astronaut candidates, along with two European trainees, poses for photos in the briefing room in the public affairs facility at NASA’s Johnson Space Center in Houston on July 7, 1980.
Group 9 was announced on May 29, 1980; the candidates would go on to make history in spaceflight and at NASA. For example, Charles Bolden (kneeling at far right) traveled to orbit four times aboard the space shuttle between 1986 and 1994, then became the agency’s first African American administrator in 2009. Franklin Chang-Diaz (fifth from the right, standing) was the first Hispanic American to fly in space and Jerry Ross (middle, standing in the back) was the first person to be launched into space seven times.
Image credit: NASA
'One of the most geometrically perfect': What is this mysterious sphere deep in the Milky Way galaxy?
NASA Tests New Ways to Stick the Landing in Challenging Terrain
6 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)Advancing new hazard detection and precision landing technologies to help future space missions successfully achieve safe and soft landings is a critical area of space research and development, particularly for future crewed missions. To support this, NASA’s Space Technology Mission Directorate (STMD) is pursuing a regular cadence of flight testing on a variety of vehicles, helping researchers rapidly advance these critical systems for missions to the Moon, Mars, and beyond.
“These flight tests directly address some of NASA’s highest-ranked technology needs, or shortfalls, ranging from advanced guidance algorithms and terrain-relative navigation to lidar-and optical-based hazard detection and mapping,” said Dr. John M. Carson III, STMD technical integration manager for precision landing and based at NASA’s Johnson Space Center in Houston.
Since the beginning of this year, STMD has supported flight testing of four precision landing and hazard detection technologies from many sectors, including NASA, universities, and commercial industry. These cutting-edge solutions have flown aboard a suborbital rocket system, a high-speed jet, a helicopter, and a rocket-powered lander testbed. That’s four precision landing technologies tested on four different flight vehicles in four months.
“By flight testing these technologies on Earth in spaceflight-relevant trajectories and velocities, we’re demonstrating their capabilities and validating them with real data for transitioning technologies from the lab into mission applications,” said Dr. Carson. “This work also signals to industry and other partners that these capabilities are ready to push beyond NASA and academia and into the next generation of Moon and Mars landers.”
The following NASA-supported flight tests took place between February and May:
Suborbital Rocket Test of Vision-Based Navigation SystemIdentifying landmarks to calculate accurate navigation solutions is a key function of Draper’s Multi-Environment Navigator (DMEN), a vision-based navigation and hazard detection technology designed to improve safety and precision of lunar landings.
Aboard Blue Origin’s New Shepard reusable suborbital rocket system, DMEN collected real-world data and validated its algorithms to advance it for use during the delivery of three NASA payloads as part of NASA’s Commercial Lunar Payload Services (CLPS) initiative. On Feb. 4, DMEN performed the latest in a series of tests supported by NASA’s Flight Opportunities program, which is managed at NASA’s Armstrong Flight Research Center in Edwards, California.
During the February flight, which enabled testing at rocket speeds on ascent and descent, DMEN scanned the Earth below, identifying landmarks to calculate an accurate navigation solution. The technology achieved accuracy levels that helped Draper advance it for use in terrain-relative navigation, which is a key element of landing on other planets.
New Shepard booster lands during the flight test on February 4, 2025.Blue Origin High-Speed Jet Tests of Lidar-Based Navigation
Several highly dynamic maneuvers and flight paths put Psionic’s Space Navigation Doppler Lidar (PSNDL) to the test while it collected navigation data at various altitudes, velocities, and orientations.
Psionic licensed NASA’s Navigation Doppler Lidar technology developed at Langley Research Center in Hampton, Virginia, and created its own miniaturized system with improved functionality and component redundancies, making it more rugged for spaceflight. In February, PSNDL along with a full navigation sensor suite was mounted aboard an F/A-18 Hornet aircraft and underwent flight testing at NASA Armstrong.
The aircraft followed a variety of flight paths over several days, including a large figure-eight loop and several highly dynamic maneuvers over Death Valley, California. During these flights, PSNDL collected navigation data relevant for lunar and Mars entry and descent.
The high-speed flight tests demonstrated the sensor’s accuracy and navigation precision in challenging conditions, helping prepare the technology to land robots and astronauts on the Moon and Mars. These recent tests complemented previous Flight Opportunities-supported testing aboard a lander testbed to advance earlier versions of their PSNDL prototypes.
The Psionic Space Navigation Doppler Lidar (PSNDL) system is installed in a pod located under the right wing of a NASA F/A-18 research aircraft for flight testing above Death Valley near NASA’s Armstrong Flight Research Center in Edwards, California, in February 2025.NASA Helicopter Tests of Real-Time Mapping Lidar
Researchers at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, developed a state-of-the-art Hazard Detection Lidar (HDL) sensor system to quickly map the surface from a vehicle descending at high speed to find safe landing sites in challenging locations, such as Europa (one of Jupiter’s moons), our own Moon, Mars, and other planetary bodies throughout the solar system. The HDL-scanning lidar generates three-dimensional digital elevation maps in real time, processing approximately 15 million laser measurements and mapping two football fields’ worth of terrain in only two seconds.
In mid-March, researchers tested the HDL from a helicopter at NASA’s Kennedy Space Center in Florida, with flights over a lunar-like test field with rocks and craters. The HDL collected numerous scans from several different altitudes and view angles to simulate a range of landing scenarios, generating real-time maps. Preliminary reviews of the data show excellent performance of the HDL system.
The HDL is a component of NASA’s Safe and Precise Landing – Integrated Capabilities Evolution (SPLICE) technology suite. The SPLICE descent and landing system integrates multiple component technologies, such as avionics, sensors, and algorithms, to enable landing in hard-to-reach areas of high scientific interest. The HDL team is also continuing to test and further improve the sensor for future flight opportunities and commercial applications.
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Designed to quickly map a planetary surface from aboard a vehicle to enable precision landings, the Hazard Detection Lidar developed at NASA’s Goddard Flight Research Center was tested aboard a helicopter at NASA’s Kennedy Space Center in March 2025.NASA Lander Tests of Powered-Descent Guidance SoftwareProviding pinpoint landing guidance capability with minimum propellant usage, the San Diego State University (SDSU) powered-descent guidance algorithms seek to improve autonomous spacecraft precision landing and hazard avoidance. During a series of flight tests in April and May, supported by NASA’s Flight Opportunities program, the university’s software was integrated into Astrobotic’s Xodiac suborbital rocket-powered lander via hardware developed by Falcon ExoDynamics as part of NASA TechLeap Prize’s Nighttime Precision Landing Challenge.
The SDSU algorithms aim to improve landing capabilities by expanding the flexibility and trajectory-shaping ability and enhancing the propellant efficiency of powered-descent guidance systems. They have the potential for infusion into human and robotic missions to the Moon as well as high-mass Mars missions.
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As part of a series of tethered and free-flight tests in April and May 2025, algorithms developed by San Diego State University guided the descent of the Xodiac lander testbed vehicle.AstroboticBy advancing these and other important navigation, precision landing, and hazard detection technologies with frequent flight tests, NASA’s Space Technology Mission Directorate is prioritizing safe and successful touchdowns in challenging planetary environments for future space missions.
Learn more: https://www.nasa.gov/space-technology-mission-directorate/
By: Lee Ann Obringer
NASA’s Flight Opportunities program
Creators of the original antigravity treadmill continue to advance technology with new company.
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Share Details Last Updated May 30, 2025 EditorLoura Hall Related TermsNASA Tests New Ways to Stick the Landing in Challenging Terrain
6 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)Advancing new hazard detection and precision landing technologies to help future space missions successfully achieve safe and soft landings is a critical area of space research and development, particularly for future crewed missions. To support this, NASA’s Space Technology Mission Directorate (STMD) is pursuing a regular cadence of flight testing on a variety of vehicles, helping researchers rapidly advance these critical systems for missions to the Moon, Mars, and beyond.
“These flight tests directly address some of NASA’s highest-ranked technology needs, or shortfalls, ranging from advanced guidance algorithms and terrain-relative navigation to lidar-and optical-based hazard detection and mapping,” said Dr. John M. Carson III, STMD technical integration manager for precision landing and based at NASA’s Johnson Space Center in Houston.
Since the beginning of this year, STMD has supported flight testing of four precision landing and hazard detection technologies from many sectors, including NASA, universities, and commercial industry. These cutting-edge solutions have flown aboard a suborbital rocket system, a high-speed jet, a helicopter, and a rocket-powered lander testbed. That’s four precision landing technologies tested on four different flight vehicles in four months.
“By flight testing these technologies on Earth in spaceflight-relevant trajectories and velocities, we’re demonstrating their capabilities and validating them with real data for transitioning technologies from the lab into mission applications,” said Dr. Carson. “This work also signals to industry and other partners that these capabilities are ready to push beyond NASA and academia and into the next generation of Moon and Mars landers.”
The following NASA-supported flight tests took place between February and May:
Suborbital Rocket Test of Vision-Based Navigation SystemIdentifying landmarks to calculate accurate navigation solutions is a key function of Draper’s Multi-Environment Navigator (DMEN), a vision-based navigation and hazard detection technology designed to improve safety and precision of lunar landings.
Aboard Blue Origin’s New Shepard reusable suborbital rocket system, DMEN collected real-world data and validated its algorithms to advance it for use during the delivery of three NASA payloads as part of NASA’s Commercial Lunar Payload Services (CLPS) initiative. On Feb. 4, DMEN performed the latest in a series of tests supported by NASA’s Flight Opportunities program, which is managed at NASA’s Armstrong Flight Research Center in Edwards, California.
During the February flight, which enabled testing at rocket speeds on ascent and descent, DMEN scanned the Earth below, identifying landmarks to calculate an accurate navigation solution. The technology achieved accuracy levels that helped Draper advance it for use in terrain-relative navigation, which is a key element of landing on other planets.
New Shepard booster lands during the flight test on February 4, 2025.Blue Origin High-Speed Jet Tests of Lidar-Based NavigationSeveral highly dynamic maneuvers and flight paths put Psionic’s Space Navigation Doppler Lidar (PSNDL) to the test while it collected navigation data at various altitudes, velocities, and orientations.
Psionic licensed NASA’s Navigation Doppler Lidar technology developed at Langley Research Center in Hampton, Virginia, and created its own miniaturized system with improved functionality and component redundancies, making it more rugged for spaceflight. In February, PSNDL along with a full navigation sensor suite was mounted aboard an F/A-18 Hornet aircraft and underwent flight testing at NASA Armstrong.
The aircraft followed a variety of flight paths over several days, including a large figure-eight loop and several highly dynamic maneuvers over Death Valley, California. During these flights, PSNDL collected navigation data relevant for lunar and Mars entry and descent.
The high-speed flight tests demonstrated the sensor’s accuracy and navigation precision in challenging conditions, helping prepare the technology to land robots and astronauts on the Moon and Mars. These recent tests complemented previous Flight Opportunities-supported testing aboard a lander testbed to advance earlier versions of their PSNDL prototypes.
The Psionic Space Navigation Doppler Lidar (PSNDL) system is installed in a pod located under the right wing of a NASA F/A-18 research aircraft for flight testing above Death Valley near NASA’s Armstrong Flight Research Center in Edwards, California, in February 2025.NASA Helicopter Tests of Real-Time Mapping LidarResearchers at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, developed a state-of-the-art Hazard Detection Lidar (HDL) sensor system to quickly map the surface from a vehicle descending at high speed to find safe landing sites in challenging locations, such as Europa (one of Jupiter’s moons), our own Moon, Mars, and other planetary bodies throughout the solar system. The HDL-scanning lidar generates three-dimensional digital elevation maps in real time, processing approximately 15 million laser measurements and mapping two football fields’ worth of terrain in only two seconds.
In mid-March, researchers tested the HDL from a helicopter at NASA’s Kennedy Space Center in Florida, with flights over a lunar-like test field with rocks and craters. The HDL collected numerous scans from several different altitudes and view angles to simulate a range of landing scenarios, generating real-time maps. Preliminary reviews of the data show excellent performance of the HDL system.
The HDL is a component of NASA’s Safe and Precise Landing – Integrated Capabilities Evolution (SPLICE) technology suite. The SPLICE descent and landing system integrates multiple component technologies, such as avionics, sensors, and algorithms, to enable landing in hard-to-reach areas of high scientific interest. The HDL team is also continuing to test and further improve the sensor for future flight opportunities and commercial applications.
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Designed to quickly map a planetary surface from aboard a vehicle to enable precision landings, the Hazard Detection Lidar developed at NASA’s Goddard Flight Research Center was tested aboard a helicopter at NASA’s Kennedy Space Center in March 2025.NASA Lander Tests of Powered-Descent Guidance SoftwareProviding pinpoint landing guidance capability with minimum propellant usage, the San Diego State University (SDSU) powered-descent guidance algorithms seek to improve autonomous spacecraft precision landing and hazard avoidance. During a series of flight tests in April and May, supported by NASA’s Flight Opportunities program, the university’s software was integrated into Astrobotic’s Xodiac suborbital rocket-powered lander via hardware developed by Falcon ExoDynamics as part of NASA TechLeap Prize’s Nighttime Precision Landing Challenge.
The SDSU algorithms aim to improve landing capabilities by expanding the flexibility and trajectory-shaping ability and enhancing the propellant efficiency of powered-descent guidance systems. They have the potential for infusion into human and robotic missions to the Moon as well as high-mass Mars missions.
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As part of a series of tethered and free-flight tests in April and May 2025, algorithms developed by San Diego State University guided the descent of the Xodiac lander testbed vehicle.AstroboticBy advancing these and other important navigation, precision landing, and hazard detection technologies with frequent flight tests, NASA’s Space Technology Mission Directorate is prioritizing safe and successful touchdowns in challenging planetary environments for future space missions.
Learn more: https://www.nasa.gov/space-technology-mission-directorate/
By: Lee Ann Obringer
NASA’s Flight Opportunities program
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