Space & Satellites
Solar Storms Accelerate Starlink Satellite Re-Entry NASA Reports
Increased solar activity during the 2025-bound solar maximum causes faster Starlink satellite decay, raising operational costs and environmental concerns.
In the age of satellite mega-constellations, SpaceX’s Starlink project has emerged as a dominant force, aiming to provide global broadband coverage through a vast network of low Earth orbit (LEO) satellites. However, recent observations reveal a growing challenge: solar storms. These natural phenomena, intensified during periods of heightened solar activity, are accelerating the re-entry of Starlink satellites by increasing atmospheric drag, raising operational, financial, and environmental concerns.
This development underscores the complex relationship between space weather and satellite operations. As more satellites are launched into LEO, understanding and mitigating the effects of solar activity is critical for service continuity, space traffic management, and long-term sustainability in Earth’s orbital environment.
The Sun follows an approximately 11-year cycle, oscillating between low and high solar activity. At its peak, known as the solar maximum, the Sun emits intense radiation, solar flares, and coronal mass ejections (CMEs). These events trigger geomagnetic storms that heat and expand Earth’s upper atmosphere, increasing the density of atmospheric particles at satellite altitudes.
For satellites in LEO, including those in the Starlink constellation, this atmospheric expansion heightens drag. The increased resistance slows satellites, reducing their orbital altitude and accelerating their descent into Earth’s atmosphere. NASA has observed that during geomagnetic storms, satellites re-enter faster than expected. In some cases, satellites projected to remain in orbit for two weeks have re-entered within five days.
Dr. Denny Oliveira, a NASA scientist, noted: “We found that when we have geomagnetic storms, satellites re-enter faster than expected [without solar activity].” This trend has intensified during the current solar cycle, which began in 2020 and is expected to peak around 2025.
“Soon, we may observe satellites re-entering on a daily basis as solar activity peaks,” Dr. Denny Oliveira, NASA Starlink satellites operate at altitudes between 340 km and 1,200 km and are equipped with onboard propulsion systems to maintain their orbits. However, increased drag during solar storms forces satellites to perform more frequent orbital adjustments, consuming fuel and potentially shortening their operational lifespan.
SpaceX has launched over 7,000 Starlink satellites and plans to deploy tens of thousands more. With such a large presence in orbit, solar activity poses a significant operational risk. NASA reports that 523 Starlink satellites re-entered Earth’s atmosphere between 2020 and 2024, with numbers expected to rise as the solar maximum intensifies.
In one incident, 37 Starlink satellites re-entered within five days of launch, far earlier than anticipated. This represents a loss of hardware and complicates satellite replacement, insurance, and orbital traffic management. The financial impact of accelerated re-entry is significant. Industry estimates suggest a single Starlink satellite costs between $250,000 and $500,000 to build and launch. Premature re-entry results in lost investment and added costs for replacements.
SpaceX is adapting by adjusting orbital altitudes, increasing fuel reserves, and enhancing space weather monitoring to predict solar storm impacts. For example, the company uses real-time data from NOAA’s Space Weather Prediction Center to inform orbital maneuvers. However, the effectiveness of these measures in fully countering solar storm effects remains under evaluation, as frequent adjustments strain satellite fuel budgets.
The broader challenge is building resilience into satellite constellations to withstand unpredictable space weather while maintaining cost-efficiency.
Rapid de-orbiting can reduce space debris by clearing defunct satellites from crowded orbits, a potential benefit for long-term orbital sustainability. However, it also raises environmental concerns. Not all satellite components burn up during re-entry, and heavier materials can survive, potentially reaching lower atmospheric layers.
One concern is the release of aluminum oxide and other byproducts during satellite combustion, which may accumulate in the mesosphere. Preliminary studies suggest these substances could affect ozone chemistry or contribute to climate impacts, but the extent of these effects is not yet fully understood. Environmental scientists emphasize the need for further research to quantify these risks.
“We are entering uncharted territory with the scale of satellite re-entries,” said Dr. Allison Jaynes, a NASA atmospheric physicist. “More data is needed to assess long-term atmospheric impacts.”
The rapid growth of satellite constellations increases the risk of in-orbit collisions. With operators like OneWeb, Amazon Kuiper, and Telesat deploying satellites in similar orbital lanes, coordination is critical. In 2019, the European Space Agency maneuvered an Earth-observing satellite to avoid a potential collision with a Starlink satellite, highlighting the need for robust space traffic management.
NASA and the Space Weather Prediction Center are integrating solar storm data into atmospheric models to improve predictions of satellite drag and orbital decay. These tools aid collision avoidance and mission planning. “Solar storms significantly increase atmospheric density at satellite altitudes, leading to enhanced drag and faster orbital decay,” Dr. Joseph Kunches, NOAA As solar activity rises, international collaboration on space weather forecasting and satellite resilience is essential. Agencies and private companies must share data and best practices to navigate this evolving landscape.
Efforts are underway to develop satellites with more durable materials and efficient propulsion systems to withstand drag and radiation. Mission planners are also incorporating solar activity forecasts into fuel and lifespan budgets.
The solar maximum is a stress test for space-based infrastructure. Our response will shape the sustainability of satellite operations for decades.
Solar storms are an operational reality for satellite operators, with Starlink’s accelerated re-entries during the solar maximum exposing the vulnerability of advanced space technologies to natural forces.
Integrating space weather forecasting into satellite design and mission planning is critical as the space industry expands. Collaboration, innovation, and environmental stewardship will determine our success in navigating the challenges of our star’s cycles.
What is causing Starlink satellites to re-enter Earth’s atmosphere faster? How many Starlink satellites have re-entered due to solar storms? What are the environmental concerns of satellite re-entries? Sources: Times of India, NASA Earth Science Division, NOAA Space Weather Prediction Center, SpaceX, Journal of Space Weather and Space Climate
Solar Storms and Starlink: How Space Weather is Forcing Satellites to Fall Back to Earth
Understanding the Solar Maximum and Its Impact on Satellites
The Solar Cycle and Increased Atmospheric Drag
Operational Challenges for SpaceX’s Starlink Constellation
Financial and Strategic Implications
Environmental and Industry-Wide Consequences
Environmental Concerns from Satellite Re-entry
Space Traffic Management and Collision Risks
Global Collaboration and Future Preparedness
Conclusion
FAQ
Increased solar activity during the solar maximum heats and expands Earth’s upper atmosphere, increasing drag and hastening orbital decay.
NASA tracked 523 Starlink re-entries between 2020 and 2024, with numbers expected to rise as solar activity peaks.
Satellite combustion may release aluminum oxide, potentially affecting atmospheric chemistry, though further research is needed to confirm long-term impacts.
Photo Credit: Science
Space & Satellites
Sodern Opens First US Facility in Colorado for Star Tracker Production
Sodern launches its first US industrial subsidiary in Colorado, producing Auriga™ star trackers and expanding in the US aerospace market.
This article is based on an official press release from Sodern.
Sodern, a prominent French manufacturer of space equipment and a subsidiary of ArianeGroup, has officially inaugurated its first United States industrial subsidiary, Sodern America. Located in Englewood, Colorado, the new facility marks a significant strategic expansion for the European aerospace giant, representing ArianeGroup’s first industrial installation on American soil.
According to the company’s announcement, the opening of Sodern America is designed to bring the manufacturer closer to its U.S. client base and navigate domestic regulatory requirements. The move positions Sodern to compete directly with established American firms in the defense and commercial space sectors by establishing a local supply chain and production capability.
The new subsidiary is situated in the Denver metropolitan area, a region widely recognized as a major hub for the U.S. aerospace industry. The facility spans approximately 14,000 square feet (1,300 square meters) and is equipped to handle manufacturing, testing, and commercial support.
In its official statement, Sodern outlined the specific operational capabilities of the Englewood site:
By establishing this physical presence, Sodern aims to address the “dynamic and demanding” nature of the U.S. market, ensuring that critical components are available with shorter supply-chains than those requiring import from Europe.
To lead the new subsidiary, Sodern has appointed Tiphaine Louradour as the CEO of Sodern America. Louradour brings over 25 years of experience in the space industry, having held significant leadership roles at major U.S. aerospace organizations.
According to biographical details released in conjunction with the announcement, Louradour’s background includes serving as CEO of Spaceflight Inc., President of International Launch Services (ILS), and President of Global Commercial Sales at United Launch Alliance (ULA). Her appointment signals Sodern’s intent to leverage deep ties within the U.S. space industrial base to secure new contracts.
A primary driver for this expansion, as noted in the company’s strategic rationale, is compliance with U.S. regulatory frameworks. Foreign entities often face barriers when bidding for U.S. government defense and civil space contracts due to strict domestic content requirements, often referred to as “Buy American” mandates. By manufacturing the Auriga™ star tracker and conducting testing in Colorado, Sodern America intends to qualify for sensitive programs that are typically restricted to U.S. entities. This local status allows the company to bypass previous regulatory hurdles and compete on equal footing with domestic manufacturers.
The entry of Sodern America into the Colorado aerospace cluster places it in direct proximity to some of its fiercest competitors. The Denver area is home to Blue Canyon Technologies (a subsidiary of RTX), which is a market leader in small satellite components and star trackers. Additionally, Ball Aerospace (now part of BAE Systems Space & Mission Systems) and Honeywell Aerospace maintain significant operations in the region.
Sodern is already a supplier for major U.S. stakeholders, including NASA, providing instruments for the InSight Mars mission and the Europa Clipper, and the OneWeb constellation. However, establishing a manufacturing foothold suggests a shift from being an exporter to becoming an embedded part of the U.S. supply chain. This move is likely to intensify competition in the optical sensors market, particularly as satellite constellations continue to scale.
What is Sodern America? Where is the new facility located? What will be manufactured at the new site? Who is the CEO of Sodern America? Why did Sodern open a U.S. factory?
Facility Capabilities and Strategic Location
Leadership and Market Objectives
Navigating “Buy American” Regulations
AirPro News Analysis: The Competitive Landscape
Frequently Asked Questions
Sodern America is the new U.S. subsidiary of the French space equipment manufacturer Sodern. It is the company’s first industrial facility in the United States.
The facility is located in Englewood, Colorado, within the Denver metropolitan area.
The site will feature a production line for Auriga™ star trackers and testing facilities for Hydra™ star trackers.
Tiphaine Louradour, a veteran aerospace executive with previous leadership roles at Spaceflight Inc. and ULA, has been appointed as CEO.
The expansion aims to bypass “Buy American” regulatory hurdles, shorten supply chains for U.S. clients, and allow the company to bid on U.S. government defense contracts.Sources
Photo Credit: Sodern
Space & Satellites
Isar Aerospace Opens Acceptance Test Facility at Esrange Space Center
Isar Aerospace launches a new test site at Esrange, Sweden, to support industrial-scale production of Spectrum rocket ahead of March 2026 flight.
This article is based on an official press release from Isar Aerospace.
Isar Aerospace has officially inaugurated a new acceptance test facility at the Esrange Space Center in Kiruna, Sweden. Announced on February 4, 2026, the opening marks a significant transition for the Munich-based launch provider as it shifts focus from prototype development to the industrial-scale production of its Spectrum launch vehicle.
The new site is purpose-built to verify the flight readiness of manufactured hardware, a critical step in ensuring high-cadence Launch operations. According to the company, the facility is designed to test over 30 Aquila engines per month, alongside fully integrated rocket stages. This infrastructure expansion comes just weeks before Isar Aerospace attempts its second Test-Flights, mission “Onward and Upward,” scheduled to First-Flight from Andøya Spaceport in Norway in March 2026.
Unlike development testing, which focuses on validating design concepts, acceptance testing is the final quality control step before hardware is shipped to the launch pad. Isar Aerospace stated in their press release that the new facility is specifically engineered to remove production bottlenecks. By securing dedicated infrastructure for acceptance testing, the company aims to ensure that every engine and stage coming off the assembly line is immediately qualified for flight.
The facility operates alongside Isar’s existing vertical test stand (VTS-2) at Esrange, which has been utilized for development testing since 2019. The addition of the new site allows for parallel operations: R&D can continue on the vertical stand while the new facility handles the volume required for serial production.
“Scaling reliable access to space requires not only advanced launch vehicle design but also the right infrastructure to support rapid development and production. With our second test facility at Esrange, we are unlocking new capabilities and accelerating our progress.”
, Daniel Metzler, CEO & Co-Founder, Isar Aerospace
The new infrastructure significantly increases the company’s throughput. Isar Aerospace reports that the site is equipped to handle the acceptance testing of more than 30 Aquila engines monthly. Furthermore, the site supports integrated stage testing, allowing engineers to verify the entire rocket stage as a cohesive unit before it leaves Sweden.
The opening of this facility highlights the intensifying race among European launch Startups to provide sovereign access to space. Isar Aerospace is competing with peers such as Rocket Factory Augsburg (RFA) and Orbex to fill the gap in Europe’s launch market. By vertically integrating its testing capabilities, Isar Aerospace reduces reliance on shared facilities, potentially giving it an advantage in scheduling and launch cadence. Swedish Space Corporation (SSC), which operates Esrange, emphasized the importance of this Partnerships for the broader European ecosystem.
“This new facility strengthens Europe’s path toward scalable and reliable access to space… Together, we are building the infrastructure that will enable a new generation of launch services.”
, Mats Tyni, Director of Business Development, SSC
The distinction between “development” and “acceptance” testing is often overlooked, yet it is the primary hurdle for launch companies moving from a single successful flight to a commercial service. In our view, Isar Aerospace’s Investments in a high-volume acceptance facility signals confidence in their hardware design. It suggests the company believes the Aquila engine design is mature enough to freeze for mass production. If the upcoming March 2026 flight is successful, this infrastructure will be the key enabler that allows them to fulfill their backlog without the testing bottlenecks that have historically plagued the industry.
The facility inauguration serves as a prelude to Isar Aerospace’s next major milestone. The company confirmed that its second test flight, dubbed “Onward and Upward,” is targeted for a launch window in March 2026. This mission will utilize the Spectrum vehicle, a two-stage rocket designed to carry up to 1,000 kg to Low Earth Orbit (LEO).
The Spectrum vehicle relies on the Aquila engines tested at Esrange, which utilize Liquid Oxygen (LOX) and Propane. Following a flight termination during the first test launch in March 2025, the company has conducted extensive hot-fire tests to validate system corrections. The new acceptance facility will likely play a central role in qualifying engines for vehicles 3 through 7, which are currently planned for concurrent production.
Industrializing Launch Capabilities
Capacity and Specs
Strategic Context: The Race for European Sovereignty
AirPro News Analysis
Upcoming Mission: “Onward and Upward”
Sources
Photo Credit: Isar Aerospace
Space & Satellites
SpaceX Crew-12 Arrives in Florida for February ISS Launch
Crew-12 astronauts from NASA, ESA, and Roscosmos arrive at Kennedy Space Center ahead of their February 11 launch to the ISS aboard SpaceX Crew Dragon.
This article is based on an official press release from NASA and additional mission data from ESA and Roscosmos.
The four-member crew of the SpaceX Crew-12 mission arrived at the Kennedy Space Center (KSC) in Florida on Friday, February 6, 2026, marking the final operational milestone before their scheduled Launch to the International Space Station (ISS). Flying in from the Johnson Space Center in Houston, the international team of astronauts landed at the Launch and Landing Facility to commence final preparations and mandatory quarantine protocols.
According to NASA, the mission is targeted to lift off on Wednesday, February 11, 2026, at 6:01 a.m. EST. The crew will ride aboard the SpaceX Crew Dragon spacecraft named Freedom, propelled by a Falcon 9 rocket from Space Launch Complex 40 (SLC-40) at Cape Canaveral Space Force Station. This flight represents a continuation of the Commercial Crew Program’s efforts to maintain a continuous human presence in low-Earth orbit.
The arrival of Crew-12 is operationally critical for the ISS, which has recently functioned with a reduced staff due to schedule shifts and medical evaluations. The successful docking of Crew-12, targeted for approximately 10:30 a.m. EST on February 12, will restore the orbiting laboratory to its full complement of seven astronauts, stabilizing maintenance rosters and scientific output for Expeditions 74 and 75.
The Crew-12 mission brings together representatives from three major Space-Agencies: NASA, the European Space Agency (ESA), and Roscosmos. The mission duration is expected to last approximately nine months, during which the crew will conduct hundreds of scientific experiments and technology demonstrations.
In an official statement regarding the mission’s scope, NASA noted:
“Crew-12 will conduct scientific investigations and technology demonstrations to help prepare humans for future exploration missions to the Moon and Mars, as well as benefit people on Earth.”
Following the launch on February 11, the crew will execute a 28-hour rendezvous profile before docking with the ISS. Once aboard, they will overlap briefly with the departing crew before settling into a long-duration stay focused on deep space biology, material science, and Earth observation.
The manifest for Crew-12 features a blend of veteran leadership and rookie talent, including two American astronauts, one French astronaut, and one Russian cosmonaut. Leading the mission is veteran astronaut Jessica Meir. Meir previously served on Expedition 61/62 in 2019 and 2020, where she gained global recognition for participating in the first all-female spacewalk alongside Christina Koch. A dual American-Swedish citizen, Meir holds a Doctorate in Marine Biology from the Scripps Institution of Oceanography. Her scientific background includes extensive research on animal physiology in extreme environments, such as emperor penguins in Antarctica. As Mission Commander, she is responsible for all phases of flight, from launch to re-entry.
Seated alongside Meir is mission pilot Jack Hathaway, making his first trip to space. Selected as a NASA astronaut candidate in 2021, Hathaway brings extensive aviation experience as a Commander in the U.S. Navy. He is a distinguished graduate of the Empire Test Pilots’ School and has logged over 2,500 flight hours in more than 30 types of aircraft. His role on Crew-12 involves monitoring vehicle systems and performance during the dynamic phases of flight.
Representing the European Space Agency is Mission Specialist Sophie Adenot. A Lieutenant Colonel in the French Air and Space Force and a helicopter test pilot, Adenot was selected as an ESA astronaut in 2022. She becomes the second French woman to fly to space, following Claudie Haigneré’s mission in 1996. Adenot’s individual mission is designated “Epsilon.”
Commenting on the significance of her role, Adenot stated:
“With this Epsilon mission, France and Europe are contributing to a global endeavor. Space exploration connects science, economy, technology, education, and diplomacy.”
Rounding out the crew is Roscosmos cosmonaut Andrey Fedyaev. This flight marks his second journey to the ISS, having previously flown on the SpaceX Crew-6 mission from March to September 2023. Fedyaev’s inclusion in the crew is notable for making him the first Russian cosmonaut to fly twice on a SpaceX Dragon vehicle. He is tasked with monitoring launch and re-entry phases and managing cargo operations aboard the station.
Upon their arrival in Florida, the crew immediately entered the Neil A. Armstrong Operations and Checkout Building to begin the standard pre-flight quarantine. This health stabilization protocol, a legacy of the Apollo era, is designed to ensure that no viral or bacterial illnesses are transported to the closed environment of the ISS.
The composition of Crew-12 underwent a significant adjustment late in the training flow. In December 2025, Roscosmos cosmonaut Oleg Artemyev was removed from the manifest and replaced by Andrey Fedyaev. While Roscosmos officially cited a “transition to other work” as the reason for the swap, industry reports have suggested the change may have been influenced by internal Regulations. Fedyaev’s previous experience on the Crew-6 mission allowed him to step into the role with a compressed training timeline, ensuring the mission schedule remained on track.
The integration of Andrey Fedyaev into Crew-12 highlights the increasing maturity and interoperability of the Commercial Crew Program. In previous eras of spaceflight, a crew change less than three months before launch could have resulted in significant delays. However, the standardization of the SpaceX Crew Dragon platform allows veteran flyers like Fedyaev to retain currency and step into rotation with reduced lead time. Furthermore, the launch of Crew-12 is pivotal for ISS operations. The station has faced a period of flux regarding crew numbers, and the return to a seven-person staff is essential for clearing the backlog of maintenance tasks and maximizing the scientific return of the orbiting laboratory before the transition to commercial space stations begins later in the decade.
Sources:
Crew-12 Astronauts Touch Down in Florida Ahead of February 11 Launch
Mission Profile and Timeline
Meet the Crew-12 Astronauts
Commander Jessica Meir (NASA)
Pilot Jack Hathaway (NASA)
Mission Specialist Sophie Adenot (ESA)
Mission Specialist Andrey Fedyaev (Roscosmos)
Operational Context and Late Adjustments
Late Crew Change
AirPro News Analysis
Photo Credit: NASA
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