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By Space Force
The inaugural class of Guardian officers graduates from the Officer Training Course at Peterson Space Force Base.
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By European Space Agency
Video: 00:09:30 In Tenerife, Spain, stands a unique duo: ESA’s Izaña-1 and Izaña-2 laser-ranging stations. Together, they form an optical technology testbed of the European Space Agency that takes the monitoring of space debris and satellites to a new level while maturing new technologies for commercialisation.
Space debris is a threat to satellites and is rapidly becoming a daily concern for satellite operators. The Space Safety Programme, part of ESA Operations, managed from ESOC in Germany, helps develop new technologies to detect and track debris, and to prevent collisions in orbit in new and innovative ways.
One of these efforts takes place at the Izaña station in Tenerife. There, ESA and partner companies are testing how to deliver precise orbit data on demand with laser-based technologies. The Izaña-2 station was recently finalised by the German company DiGOS and is now in use.
To perform space debris laser ranging, Izaña-2 operates as a laser transmitter, emitting high-power laser pulses towards objects in space. Izaña-1 then acts as the receiver of the few photons that are reflected back. The precision of the laser technology enables highly accurate data for precise orbit determination, which in turn is crucial for actionable collision avoidance systems and sustainable space traffic management.
With the OMLET (Orbital Maintenance via Laser momEntum Transfer) project, ESA combines different development streams and possibilities for automation to support European industry with getting two innovative services market-ready: on-demand ephemeris provision and laser-based collision avoidance services for end users such as satellite operators.
A future goal is to achieve collision avoidance by laser momentum transfer, where instead of the operational satellite, the piece of debris will be moved out of the way. This involves altering the orbit of a piece of space debris slightly by applying a small force to the object through laser illumination.
The European Space Agency actively supports European industry in capitalising on the business opportunities that not only safeguard our satellites but also pave the way for the sustainable use of space.
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By NASA
4 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)
Robert Mosher, HIAD materials and processing lead at NASA Langley, holds up a piece of webbing material, known as Zylon, which comprise the straps of the HIAD.NASA/Joe Atkinson Components of a NASA technology that could one day help crew and cargo enter harsh planetary environments, like that of Mars, are taking an extended trip to space courtesy of the United States Space Force.
On Aug. 21, several pieces of webbing material, known as Zylon, which comprise the straps of the HIAD (Hypersonic Inflatable Aerodynamic Decelerator) aeroshell developed by NASA’s Langley Research Center in Hampton, Virginia, launched to low Earth orbit along with other experiments aboard the Space Force’s X-37B Orbital Test Vehicle. This trip will help researchers characterize how the Zylon webbing responds to long-duration exposure to the harsh vacuum of space.
The strap material on the HIAD aeroshell serves two purposes – short strap lengths hold together HIAD’s inflatable rings and longer pieces help to distribute the load more evenly across the cone-shaped structure. The HIAD aeroshell technology could allow larger spacecraft to safely descend through the atmospheres of celestial bodies like Mars, Venus, and even Saturn’s moon, Titan.
“We’re researching how HIAD technology could help get humans to Mars. We want to look at the effects of long-term exposure to space – as if the Zylon material is going for a potential six to nine-month mission to Mars,” said Robert Mosher, HIAD materials and processing lead at NASA Langley. “We want to make sure we know how to protect those structural materials in the long term.”
The Zylon straps are visible here during the inflation of LOFTID as part of a November 2022 orbital flight test. LOFTID was a version of the HIAD aeroshell — a technology that could allow larger spacecraft to safely descend through the atmospheres of celestial bodies like Mars, Venus, and even Saturn’s moon, Titan.NASA Flying Zylon material aboard the Space Force’s X-37B mission will help NASA researchers understand what kind of aging might occur to the webbing on a long space journey before it experiences the extreme environments of atmospheric entry, during which it has to retain strength at high temperatures.
Multiple samples are in small canisters on the X-37B. Mosher used two different techniques to put the strap material in the canisters. Some he tightly coiled up, others he stuffed in.
“Typically, we pack a HIAD aeroshell kind of like you pack a parachute, so they’re compressed,” he said. “We wanted to see if there was a difference between tightly coiled material and stuff-packed material like you would normally see on a HIAD.”
Some of the canisters also include tiny temperature and humidity sensors set to collect readings at regular intervals. When the Space Force returns the samples from the X-37B flight, Mosher will compare them to a set of samples that have remained in canisters here on Earth to look for signs of degradation.
The material launched to space aboard the Space Force’s X-37B Orbital Test Vehicle, seen here earlier this year.Courtesy of the United States Space Force “Getting this chance to have the Zylon material exposed to space for an extended period of time will begin to give us some data on the long-term packing of a HIAD,” Mosher said.
Uninflated HIAD aeroshells can be packed into small spaces within a spacecraft. This results in a decelerator that can be much larger than the diameter of its launch vehicle and can therefore land much heavier loads and deliver them to higher elevations on a planet or other celestial body.
Rigid aeroshells, the sizes of which are dictated by the diameters of their launch vehicles, typically 4.5 to 5 meters, are capable of landing well-equipped, car-sized rovers on Mars. By contrast, an inflatable HIAD, with an 18-20m diameter, could land the equivalent of a small, fully furnished ranch house with a car in the garage on Mars.
NASA’s HIAD aeroshell developments build on the success of the agency’s LOFTID (Low-Earth Orbit Flight Test of an Inflatable Decelerator) mission that launched on Nov. 10, 2022, resulting in valuable insights into how this technology performs under the stress of re-entering Earth’s atmosphere after being exposed to space for a short time period.
Learn more: https://www.nasa.gov/space-technology-mission-directorate/tdm/
About the Author
Joe Atkinson
Public Affairs Officer, NASA Langley Research Center
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Last Updated Aug 27, 2025 Related Terms
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By Space Force
The USSF and nine partner nations concluded Schriever Wargame 2025, capping a two-week wargame that tested strategies, evaluated future technologies and strengthened international cooperation in space.
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By NASA
Think of NASA’s Stennis Space Center, and one likely thinks of rocket propulsion testing. The site has a long history of testing to support the nation’s space efforts, including the current Artemis program to send astronauts to the Moon to prepare for future human exploration of Mars.
However, NASA Stennis also is working to become a key supporter of more terrestrial exploration. Indeed, in terms of unmanned range operations, NASA Stennis has it all – layers of restricted airspace, a closed canal system, and acres upon acres of protected terrain.
Field TestU.S. Naval Research Laboratory personnel conduct a field experiment involving an unmanned aerial system at NASA Stennis in March 2024. (NASA/Danny Nowlin)NASA/Danny Nowlin Marine OperationU.S. Naval Research laboratory personnel conduct tests on The Blue Boat made by Blue Robotics, an unmanned surface vessel, at NOAA’s National Data Buoy Center basin at NASA Stennis on Dec. 19, 2024.NASA/Danny Nowlin Bird’s-Eye ViewAn unmanned aerial system provides a bird’s-eye view of an RS-25 on Feb. 22, 2024, on the Fred Haise Test Stand at NASA Stennis. NASA The NASA site near Bay St. Louis, Mississippi, is an ideal location for all types of air, marine, and ground testing, said Range Operations Manager Jason Peterson. “My job is to understand the customer, and their requirements and limitations, to help them succeed,” he added. “What makes NASA Stennis unique is our federally protected area for users to operate.”
The need to learn about unmanned systems, such as drones or underwater vehicles, in a safe environment is growing as technology advances. Think of it like learning to drive a car in a parking lot before hitting the road.
NASA Stennis has already begun leveraging these capabilities. In 2024, the center established an agreement with Skydweller Aero Inc. to utilize restricted airspace for flight testing of autonomous, solar-powered aircraft. This first-of-its-kind agreement paves the way for future collaborations as NASA Stennis expands its customer-based operations beyond onsite tenants.
An unmanned aerial system provides a panoramic view of the NASA Stennis test complex and canal system. NASA Look to the Sky
NASA Stennis has its own protected airspace, similar to how airports control the skies around them. The Federal Aviation Administration (FAA) first established this restricted airspace in 1966 and expanded it in 2016 to support both NASA missions and U.S. Department of Defense operations.
NASA Stennis is one of only two non-military restricted airspaces in the nation. It operates two main airspace zones – a propulsion testing area extending from ground level up to 12,000 feet for safely testing rocket engines without interfering with regular air traffic, and an aircraft operations zone covering 100 square miles up to 6,000 feet, with 15 dedicated acres for drone launch and recovery.
NASA Stennis staff provide comprehensive support including safety reviews, coordination between aircraft operators and FAA air traffic controllers, and constant communication with range safety personnel to ensure all operations are conducted safely.
Marine Operations
The centerpiece of the NASA Stennis marine range is its extensive 7.5-mile canal system, protected by a lock-and-dam system that connects to Pearl River tributaries. This network accommodates various marine platforms including traditional watercraft, autonomous underwater vehicles, remotely operated vehicles, unmanned surface vessels, and aerial drones requiring water landing capabilities.
The controlled environment provides protection from adverse weather and interference, making it ideal for testing sensitive or proprietary technologies. The facility is particularly valuable for emerging technologies in autonomous systems, sensor integration, and multi-domain operations where air, surface, and underwater platforms operate in coordination.
Ground Level
NASA Stennis facilities are located on 13,800 acres of fenced-in property, surrounded by an additional 125,000 acres of protected land known as the acoustical buffer zone. This area was established primarily through permanent lease to allow testing of large rocket hardware without disturbing area residents and is closely monitored without permanent habitable structures.
“The location helps reduce hazards to the public when testing new technology,” Peterson said. “With supporting infrastructure for office space, storage, or manufacturing, this makes NASA Stennis a great place to test, train, operate, and even manufacture.”
The NASA Stennis federal city already hosts more than 50 federal, state, academic, public, and private aerospace, technology, and research organizations, with room for more. All tenants share operating costs while pursuing individual missions.
‘Open for Business’
NASA Stennis leaders are keenly aware of the opportunity such unique capabilities afford. The center’s 2024-2028 strategic plan states NASA Stennis will leverage these unique capabilities to support testing and operation of uncrewed systems.
Leaders are working to identify opportunities to maximize site capabilities and develop an effective business model. “NASA Stennis is open for business, and we want to provide a user-friendly range for operators to test vehicles by creating an environment that is safe, cost-effective, and focused on mission success,” Peterson said.
For information about range operations at NASA’s Stennis Space Center, visit:
Range and Airspace Operations – NASA
For information about Stennis Space Center, visit:
https://www.nasa.gov/stennis
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Last Updated Aug 25, 2025 EditorNASA Stennis CommunicationsContactC. Lacy Thompsoncalvin.l.thompson@nasa.gov / (228) 688-3333LocationStennis Space Center Related Terms
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