ESA, Airbus, TESAT and TNO set new record for fast and secure optical communications from geostationary orbit

Publication date

26 Feb 2026

The European Space Agency (ESA), alongside Europe’s Airbus Defence and Space, the Netherlands Organisation for Applied Scientific Research (TNO), and TESAT, have successful demonstrated laser communications between an aircraft and a geostationary satellite over 36,000 kilometres away.

Test aircraft fitted with UltraAir terminal on the runway. Image credit: Airbus Defence and Space

The development is supported by ESA’s Optical and Quantum Communications – ScyLight programme, within the Advanced Research in Telecommunications Systems (ARTES) programme. ScyLight addresses the development, demonstration and utilisation of innovative optical and quantum technologies for satellite communications through system studies and market analyses in partnership with Industry. Fulfilling this mandate, UltraAir’s technology paves the way for secure, gigabit per second–speed communications with low probability of interference or interception.

In a series of flight tests from the Nîmes Airport in France, the jet aircraft equipped with Airbus’ UltraAir laser communication terminal established and maintained a secure laser link with its counterpart in geostationary orbit. On the aircraft, the UltraAir terminal’s mechanical and optical control technology – needed to achieve a stable laser link – was developed by TNO, while its free-space optical link was provided by Airbus subsidiary, TESAT.

Together, these advancements allowed UltraAir to connect with a TDP–1, a testbed for the implementation of optical data links equipped onboard the Alphasat satellite. The TDP-1 Laser Communication Terminal is owned by the German Aerospace Center (DLR) and is operated by TESAT, in collaboration with ESA.

The Alphasat telecom satellite. Image credit: European Space Agency. Image credit: ESA-S. Corvaja

Optical data links have the potential to enable satellites to rapidly and securely transmit complete data sets in a single burst, a significant improvement over legacy Radio frequency (RF) systems. The UltraAir demonstration flights tested acquisition and tracking abilities for optical links from a moving platform – rather than a static ground station – and established a seamless performance: a bit error free, coherent data rate of 2.6 gigabit per second that remained uninterrupted for several minutes.

This advancement has both civilian and defence applications, providing a secure alternative to RF satellite communications. RF has historically been the backbone of satellite communications, but it can be intercepted, jammed and disrupted by user proliferation and adverse weather – decreasing the integrity and security of data transmissions. In defence, laser communications could help overcome the challenge posed by clouds in multidomain operations and make it harder to intercept communications. In civilian applications, it could enable high–speed data connections with mobile platforms such as passenger airliners, cars and ships to keep passengers connected.

Alphasat TDP-1 Optical Communication Terminal
Alphasat TDP1 Optical Communication Terminal. Image credit: TESAT, DLR

“This achievement demonstrates how optical communications can transform secure connectivity for our Member States. Particularly by working to resolve the technical challenges that come with establishing fast laser communications, capable of evading interference and detection in demanding conditions,” said Laurent Jaffart, Director of Resilience, Navigation and Connectivity at ESA. “Collaboration drives innovation, and this milestone will strategically deliver benefits to future missions, where speed and security of data transmission is paramount. For Europe and beyond.”

“Establishing laser links between moving targets at this distance is technically very challenging. Continuous movements, platform vibrations and atmospheric disturbances require extreme precision,” said François Lombard, Head of Connected Intelligence at Airbus Defence and Space. “This milestone is a further development of our long successful laser communication history; it opens the door to a new era of laser satellite communications to meet defence and commercial needs in the next decades.”

“This breakthrough proves that our industry strengthens Europe’s security and its autonomy by leading strategic technology in the field of secure laser communications,” said Kees Buijsrogge, Director of Space at TNO.

“Optical communications between airborne users and satellite networks, like ESA’s High-thRoughput Optical Network (HydRON), are high on ESA’s agenda,” said Harald Hauschildt, Head of ESA’s Optical and Quantum Communication Office. “High-data rate, low-latency links that connect High-Altitude Pseudo Satellites (HAPS) and aircraft are equally demanded for commercial and resilience driven applications.”

The project was co-funded by Airbus and TNO, with support from the Netherlands Space Office (NSO) and the German Aerospace Center (DLR) as part of ESA’s Optical and Quantum Communications – ScyLight programme.

Finnish tech company showcases ESA-supported embedded fabric antenna capable of GEO satellite connectivity

Publication date

25 Feb 2026

A prototype of the fabric antenna. Credit: Stealthcase

WEARABLE ANTENNAS ON MOUNTAINTOPS

In an advance for innovative internet–of–things satellite connectivity, Stealthcase, a Finnish company successfully demonstrated connectivity with satellites in geostationary (GEO) orbit. This was achieved using a wearable textile antenna initially developed under the European Space Agency’s Advanced Research in Telecommunications Systems (ARTES) programme. The demonstration was conducted in real world conditions, with the fabric antenna maintaining a stable connection to satellites 35,000 km away. This experiment showcases the potential of new materials solutions as the adoption of non–terrestrial–network and internet–of–things expands.

The real–world test was held at Halti, a fell at the Norway–Finland border; two teams of hikers wearing jackets lined with Stealthcase’s textile antenna – produced in collaboration with the eponymous Halti clothing brand – tested the connectivity by exchanging messages as one group climbed, and the other stayed at lower altitudes. The fabric antenna, incorporated directly into the hiker’s jackets, maintained a strong signal connection with satellites in geostationary orbit, even in expected blind spots, such as the low–altitude area in the shadow of the mountain.

The test team wearing the textile-antenna-equipped jackets. Imaged credit: Teemu Jaakkola, Radientum

THE CHALLENGE: SIZE VS PERFORMANCE VS RUGGEDNESS

Antennas require a specific size relative to the wavelength they operate on to function optimally. Reducing their size to fit them on compact and handheld devices therefore incurs a trade–off in performance – and a commensurate increase in price. Concurrently, textile antennas thus far have been limited by existing manufacturing techniques and materials, restricting performance and making them ill–suited for daily use.

COMBINING INNOVATIONS

Stealthcase’s approach blends innovative laser processing techniques with groundbreaking antenna technology to overcome this challenge – bringing together ingenious manufacturing with ESA–supported research into antenna technology.

Leveraging the production techniques developed to process coated glass into energy–efficient windows that also let through signals, the Company was able to ablate conductive fabrics into a flexible fabric antenna. The antenna technology itself builds on prior work started under the ARTES programme to create an L–band satellite phone antenna capable of communicating with satellites in low Earth orbit (LEO).

“You can build something in a lab, write a paper and be done with your project. We want to build something that works, something that lasts,”

Juha Lilja, CTO at Stealthcase

BUILDING A RUGGED PRODUCT

The novel production method allowed Stealthcase to overcome a significant obstacle to the usability of textile antennas – weathering real life wear and tear. Fragile coaxial soldering and conductive adhesives having proved unreliable, the Company patented an impact–tolerant RF interface, integrating circuit boards directly with conductive fabrics. This elegant solution enables a new approach to the traditional trade–off for antennas: by building them directly into the fabric with no wires or snappable parts, the antennas can grow as big as the surface of the object they are sown into.

REAL–WORLD PERFORMACE

Stealthcase’s technology merges RF circuitry with conductive fabrics, enabling customisation to different frequency bands – from VHF up to GHz frequencies. By turning the entire fabric’s surface area into an antenna, the Company is able to

adapt the LEO antenna technology developed with ESA for GEO communications, maximising both power and range to operate on S–band.

During tests, the wearable fabric antenna performed as well as – and sometimes better – than smartphone antennas. The textile satellite transceiver achieved low variation, low loss signal, with as much as ten times less interference than phones. Its Specific Absorption Rate (SAR) was measured by Radientum at 0.15 Watt per kilogram at 868 Mega Hertz ISM bandwidth 20 decibel-milliwatts continuous wave transmission power with 10 grams tissue averaging.

In real conditions, the performance speaks for itself: The fully integrated wearable satellite messenger in the Halti jacket provided two–way connectivity through a GEO satellite link.

A diagram indicating the connection angle of the GEO satellite. Image credit: Stealthcase

MADE–TO–ORDER CONNECTIVITY

Stealthcase’s manufacturing process makes this innovative satellite communication solution highly customisable and affordable. By adapting its laser–based processes, the Company can produce textile antennas and soft, conformal components in a scalable and repeatable manner.

The immediate applications for embedded satellite communications can help improve safety for emergency services, first responders and remote workers by replacing bulky equipment with seamless, accessible connectivity where no terrestrial network exists. This solution also meets with emergent trends in IoT applications, making its resilient, customisable design an enabler of innovation for future applications.

“Turning clothes, life rafts, and more into antennas makes sure we can keep people connected when they need it the most,” said Hoda Nematollahi, Antenna Engineer at ESA. “Stealthcase’s work is a great example of the unexpected solutions and innovations that come out of ESA-supported research to enable new businesses and applications.”

Greece’s Advanced Laser Satellite Communications test campaign to launch with ESA support  

Publication date

13 Feb 2026

PeakSat, OptiSat and ERMIS-3 undergoing integration testing
PeakSat, OptiSat and ERMIS-3 undergoing integration testing. Image credit: National and Kapodistrian University of Athens

The European Space Agency (ESA) is supporting an extensive test campaign for optical laser terminals orchestrated by a broad coalition of Greek aerospace and academic partners under the Greek Connectivity Programme. Launching with four CubeSat missions in the first half of 2026, this campaign will aim to validate next-generation laser communication terminals in support of Greece’s expanding Connectivity and Secure Communications Programme.

The missions, operated by Planetek Hellas, EMTech Space, the Aristotle University of Thessaloniki, and the National and Kapodistrian University of Athens will conduct in-orbit-demonstrations of three different laser payload designs. The optical terminals will use laser light for high-bandwidth, secure links between the satellites and ground stations, potentially exceeding 1Gbps data rates. This technology represents a step change from traditional radio frequency communications, which are vulnerable to interference, provide much lower data rates, and require licensing.

OptiSat undergoing testing of it laser communications terminal payload
OptiSat undergoing testing of it laser communications terminal payload. Image credit: Planetek Hellas

OptiSat, led by Planetek Hellas, will host a TESAT SCOT20 laser communication terminal payload designed to demonstrate secure, high-rate laser links from small satellites in Low-Earth Orbit (LEO). It was delivered, accepted and integrated with the 6U OptiSat satellite in August 2025 ahead of testing and launch preparations.

Hellenic Space Dawn comprises of two 8U satellites, managed by EMTech Space. The satellites are equipped with CubeCAT laser communication terminals from AAC Clyde Space. The mission will validate robust optical links, offering significant improvements over conventional radio frequency systems for transmission speeds and resistance to interference. This mission will also carry high-resolution cameras with the intention of leveraging optical links to enable low-latency support for applications such as cartography and land-use monitoring.

PeakSat undergoing pre-flight tests
PeakSat undergoing pre-flight tests. Image credit: Aristotle University of Thessaloniki

PeakSat is a 3U CubeSat developed by the Aristotle University of Thessaloniki. It will use the Astrolight ATLAS-1 laser communication terminal to test space-to-ground optical links with upgraded Greek optical ground stations. This will establish real-world performance metrics across a variety of atmospheric and operational conditions.

ERMIS-3 undergoing pre-flight preparations
ERMIS-3 undergoing pre-flight preparations. Image credit: ERMIS consortium

ERMIS-3 is a 6U satellite and a cornerstone mission of the Greek Connectivity Programme. It was built by the ERMIS consortium, led by the National and Kapodistrian University of Athens (NKUA), and features an Astrolight ATLAS-1laser communication terminal. While the ERMIS-1 and ERMIS-2 missions focus on 5G Internet of Things non-terrestrial-network connectivity, ERMIS-3 will focus on high-capacity and secure space-to-ground optical links. In particular, it will emphasise precise pointing, acquisition and tracking (PAT) and operational robustness. ERMIS-3 plays a key role in validating Astrolight’s technology for future operational and constellation-level applications. ERMIS-3 also features a hyperspectral camera and will aim to demonstrate rapid transmission of hyperspectral imagery from space via optical links, for applications such as precision agriculture.

The CubeSats are part the Greek Connectivity Programme, implemented by ESA on behalf on the Greek Government’s Ministry of Digital Governance. Together with recent advances in the work on the Hellenic Assembly, Integration and Testing Facility (HAITF), these missions are part of a push to build up the country’s ability to design, build, test and operate satellites.

“This test campaign is a concerted effort to deliver top-of-the-line laser communications capabilities for Greece and advance its place as a fully-fledged player in Europe’s space ecosystem,” said Frederic Rouesnel, Greek National Telecommunications Satellites Programme Manager at the European Space Agency. “Mastering laser communications on compact satellites is a bold step towards next-gen constellation applications for the Greek Connectivity Programme.”

“PeakSat’s launch with Transporter-16 marks a significant milestone for SpaceDot, Aristotle University of Thessaloniki, and Prisma Electronics. The mission will demonstrate in-orbit optical communications with the Holomondas Optical Ground Station, developed at AUTH with the Laboratory of Theoretical Mechanics and Astronomy. Delivered end-to-end by student engineers and researchers, PeakSat shows how effective industry–academia collaboration can translate ambitious research goals into flight-ready capability,” said Panagiotis Vamvakas, PeakSat Project Manager at the Aristotle University of Thessaloniki. “With Astrolight’s ATLAS-1 optical terminal and key subsystems developed in-house – including the on-board computer and the communications board – PeakSat is ready to begin its operational phase in orbit.”

The state-of-the-art laser communications testing capabilities are central to Greece’s space strategy, enabling secure connectivity and high-speed data transfer for scientific, governmental and commercial applications.

Greek Connectivity Programme implemented by ESA proceeds with satellite commissioning and launches

Publication date

13 Feb 2026

The MICE-1 and PHASMA Greek CubeSat missions supported by the European Space Agency (ESA) have begun their in-orbit activities, a key milestone in their launch and early operations phase.

The two missions were launched into Sun Synchronous Orbit on 28 November 2025 aboard SpaceX’s Transporter-15 rideshare mission from Vandenberg Space Force Base, USA. Joining DUTHSat-2 in orbit, MICE-1 and PHASMA are part of the Greek National Small Satellite Programme implemented by ESA on behalf of the Hellenic Ministry of Digital Governance. The three missions are part of a larger endeavour to launch a total of seven Greek missions, which will culminate with four additional CubeSat missions in 2026.

The Greek IOD/IOV CubeSat programme falls under the National Recovery and Resilience Plan ‘Greece 2.0’ funded by the Recovery and Resilience Facility (RRF), a core programme of the European Union’s NextGenerationEU. The RRF aims to strengthen Greece’s technological capabilities in areas such as secure connectivity and Earth observation, while fostering the country’s presence in the global space community.

MICE-1 and PHASMA are the latest addition to this effort. The satellites are operated by PRISMA Electronics and the Libre Space Foundation respectively. During the critical launch and operations phase, both teams work to verify spacecraft health, gradually activating onboard systems. Following launch, the operators successfully established contact with all spacecrafts and verified their response to commands – enabling the teams to safely progress through the commissioning of key functions and transition towards routine operations.

An artist's render of the PHASMA constellation satellites flying in formation
An artist’s rendering of the PHASMA spacecrafts’ in-flight configuration. Image credit: Libre Space Foundation

PHASMA is composed of two satellites, LAMARR and DIRAC, equipped with a SatNOGS-COMMS transceiver and a payload antenna used to monitor radio frequency activity in UHF and S-bands before sending the measurements to the ground stations. By combining measurements from the two satellites with their orbital positioning, operators will be able to determine the location of the signals, particularly whether they are originating from Earth or from space. With this information, the Libre Space Foundation team will be able to quantify global spectrum usage and identify potential sources of interference or violations.

MICE-1 being integrated with its deployment system ahead of launch
MICE-1 integrated with its deployer ahead of the launch. Image credit: Exolaunch

The Maritime Identification and Communication systEm-1 (MICE-1), developed by Prisma Electronics S.A. with the support of the Democritus University of Thrace, is a 3U CubeSat focused on enhancing maritime tracking activities in the Mediterranean Sea.  MICE-1 hosts an antenna and receiver to track Automated Identification System (AIS) signals broadcast by seafaring vessels, extending maritime tracking coverage into remote areas. In addition, the mission establishes communication with ships equipped with PRISMA Electronics’ LAROS system. LAROS supports the diagnosis and early warning for structural, environmental and energy footprint assessment of maritime assets.

The remaining four ESA-supported missions of the seven  planned since  2023, are planned to be launched in 2026: ERMIS (National and Kapodistrian University of Athens), OptiSat (Planetek Hellas), PeakSat (Aristotle University of Thessaloniki) and Hellenic Space Dawn (EMTech SPACE). Together, the seven missions will contribute to expanding Greece’s space ambitions with practical know-how in satellite building, launch and operations to take on a growing place in the European space ecosystem.

“ESA and the Hellenic Ministry for Digital Governance are building a bold foundation for Greece’s future in space,” said Frederic Rouesnel, Greek National Telecom Satellites Programme Manager at the European Space Agency. “Each mission in the programme is another milestone in the new space race, expanding Greece’s ability to design, assemble, test, operate and leverage satellites – both independently and in collaboration with the rest of the European space ecosystem. We will continue building up speed towards this ambitious future in space in the months to come.”

ESA and University of Glasgow demonstrate end-to-end medical visit with satellite-powered remote medicine

Publication date

20 Jan 2026

Consulting dentist performing the remote dental inspection from the 5G/6G Hub in ESA’s ECSAT. Image credit: European Space Agency

The European Space Agency (ESA) and the University of Glasgow successfully performed a remote dental inspection over satellite signal using the pop—up 5G network developed by ESA’s 5G REMOTE project. This experiment showcases the benefits of satellite communications for telemedicine – enabling healthcare professionals to engage and even physically interact with patients from hundreds of miles away.

This simulation was conducted in a partnership between ESA Connectivity and Secure Communications, and the Glasgow Next—Generation (GXG) testbed at the University of Glasgow. The experiment was funded under ESA’s Space for 5G/6G & Sustainable Connectivity programme within the Advanced Research in Telecommunications Systems (ARTES) programme, with support from the UK Space Agency.

The test team at ESA’s ECSAT in Harwell. Image credit: European Space Agency

The test demonstrated a complete, end—to—end remote patient experience. The user equipment located in the 5G/6G Hub at ESA’s European Centre for Space Applications and Telecommunications (ECSAT) site at the Harwell Science and Innovation Campus connected through a OneWeb satellite backhaul to the University of Glasgow’s 5G pop—network. This pop—up network enabled the team to connect to a robotic arm located at the University of Glasgow’s Loch Lomond facility, using a 5G edge breakout to optimize user plane traffic. Through this remotely controlled robotic arm, the doctor at ESA ECSAT was able to perform a dental examination of the simulated patient at Loch Lomond. The Space for 5G/6G team then dispatched a drone to deliver medication to the patient, all the while monitoring and tracking its payload over a 5G—enabled Long—Range Wide Area Network (LoRaWAN).

This seamless experience — blending terrestrial and non—terrestrial networks with robotic systems and drones while leveraging edge computing capabilities — highlights the transformative potential of integrated terrestrial and non—terrestrial connectivity for secluded areas. Where terrestrial networks are not economically viable or practical due to geographical or demographic constraints, hybrid 5G and satellite—enabled connectivity can bridge the gap and enable advanced telemedicine services. By integrating terrestrial and non—terrestrial networks, new and faster communications standards being developed by industry will help to enable stable and continuous connections worldwide.

The robotic arm and simulated patient at University of Glasgow’s Loch Lomond facility. Image credit: University of Glasgow

Leveraging the potential of ubiquitous signal coverage afforded by integrated terrestrial and non—terrestrial networks, the 5G REMOTE project combines satellite connectivity with a portable 5G pop—up network that can be rapidly deployed in remote locations where only satellite coverage can reach. This hybrid solution supports critical services, such as telemedicine, by enabling new robotic and unmanned solutions that extend the reach and effectiveness of healthcare providers. For emergency situations, this technology can help provide critical care, even in geographically isolated and otherwise hard—to—reach locations. The technology can also reduce cost by removing transportation from the equation.

“This kind of reliable and flexible connectivity has potentially transformative applications for improving the wellbeing of millions of people,” said Antonio Franchi, Head of ESA’s Space for 5G/6G & Sustainable Connectivity programme. “We are combining satellite communications technology with new advances in mobile signals and robotics to unlock the full power of telemedicine and help to overcome the digital divide.”

 “Access to healthcare should not depend on postcode or proximity to a major hospital. Our team’s work with ESA demonstrates a practical pathway to bring specialist assessment and timely intervention closer to remote and rural communities,” said Professor Muhammad Imran, Head of James Watt School of Engineering at the University of Glasgow. “This was enabled by using integrated 5G and satellite connectivity (terrestrial and non—terrestrial networks) to support real—time interaction, remote examination and delivery of essentials when every minute matters.”

Infrastructure and Clean Room works on Hellenic Assembly Integration & Testing Facility nearing completion with support from ESA

Publication date

21 Dec 2025

The facility’s core capabilities will be enabled by thermal vacuum chambers (TVAC), one of which is seen here during the Manufacturing Review in Italy prior to the factory acceptance test. Image credit: Hellenic Aerospace Industry S.A.

Civil and structural work has been completed on the Hellenic Assembly, Integration and Testing Facility (HAITF), implemented by ESA Connectivity and Secure Communications in collaboration with the Hellenic Aerospace Industry S.A. (HAI) on behalf of the Hellenic Government. This milestone comes after the successful launches for the Greek Satellite Connectivity Programme on Transporter-15 and puts the facility on track for its commissioning and acceptance, with operational target by the second quarter of 2026.

The infrastructure that will house the brand-new facility has been completed to the rigorous specifications of satellite Assembly, Integration and Testing (AIT) activities, with support from the main subcontractor, BCT Group. The AIT facility’s spatial configuration and structure have been designed to support the demanding operational requirements of satellite assembly, with purpose-built floors, load-bearing structures and overhead cranes. Furthermore, the room partitions, finishes, interfaces, systems & utility networks for the environmental controls constituting the ISO 8-compliant cleanroom have also been installed. In the coming weeks, installation of the remaining lighting, electrical distribution, and grounding infrastructure will proceed at pace to bring the cleanroom to operational standards.

IMV Corporation’s shaker system successfully passed the Factory Acceptance Stage in November 2025, prior to shipment to Greece. Image credit: Hellenic Aerospace Industry S.A.

This Hellenic AIT facility is being built to further support the role of Greece in the European space landscape. The HAITF will boost the design and manufacture of the next generation of Greek satellites, from subsystem integration to environmental qualification. The facility’s core capabilities will be enabled by two thermal vacuum chambers (TVAC) provided by Angelantoni Test Technologies, and a 125kN-rated Vibration Test System (shaker) provided by the IMV Corporation. Highlighting the rapid progress of development of the facility, IMV Corporation’s shaker system successfully passed its Factory Acceptance Stage in November 2025, validating its performance within HAITF’s strict specification requirements. Both TVAC and shaker components are expected to be installed in February 2026.

As part of the National Recovery and Resilience Plan “Greece 2.0”, the Hellenic AIT facility project is funded by the European Union through the Recovery and Resilience Facility (RRF) and implemented by ESA on behalf of the Greek Ministry of Digital Governance. The HAITF project was launched in November 2023 with the objective to design, build, and operate a fully functional Assembly, Integration and Testing infrastructure at HAI’s site in Schimatari. The implementation began in early 2025, targeting full installation by the first half of 2026, with site acceptance tests scheduled for no earlier than March 2026. The timeline demonstrates the momentum of the programme towards delivering modern high-performance facilities supporting advanced AIT capabilities for the Greek space industry.

“2025 has counted milestone after milestone for the Greek Connectivity Programme,” said Frédéric Rouesnel, Greek Connectivity RRF Project Manager at ESA’s Connectivity and Secure Communications. “The completion of the building housing the brand-new Hellenic AIT facility will boost Greece’s role in the European space landscape and open the doors for talent and expertise to grow locally with new jobs and projects throughout the value chain. Already, HAITF has shown Greece’s expertise to develop and produce highly rated facilities to enable  its growing role in the end-to-end European industrial resilience, strategic autonomy, collaboration and know-how.”

ESA’s Iris satcom technology takes to US skies to showcase next-gen sustainability applications on Boeing 2025 ecoDemonstrator

Publication date

16 Dec 2025

ESA Iris Implementation Manager, Davide Tomassini (fourth from left), with the Viasat, Boeing and Honeywell teams in front the ecoDemonstrator. Image credit: ESA/Boeing

The European Space Agency (ESA) has partnered with Viasat, ESSP and its consortium of industry partners to bring Iris secure satellite communications to the forefront of the US aviation sector, as part of a long-standing ESA effort to push space-based digital communications solutions for air traffic management. A Boeing 737-8 aircraft, the ecoDemonstrator Explorer, operated by United Airlines, has flight tested ESA’s Iris; a suite of internet-based communications technologies. These technologies complement current analogue communications standards between pilots and Air Traffic Control (ATC). In addition, they enable more sources of flight-relevant information to be made available for ATC.

This announcement highlights a trend in integration of satellite technologies to improve air travel sustainability, safety and efficiency. The partnership is co-funded through the Iris programme, developed by the Space Systems for Safety and Security (4S) team within ESA’s Advanced Research in Telecommunications Systems (ARTES) 4.0. Iris is implemented by ESA in close cooperation with a large European and Canadian industrial consortium led by Viasat.  This announcement paves the way for the global deployment of Iris after its rollout for aircraft operating in European airspace started in 2024.

The ecoDemonstrator Explorer. Image credit: Boeing

The Viasat-enabled Iris terminal is the latest technology to be integrated into Boeing’s ecoDemonstrator programme since its inception in 2012. The ecoDemonstrator showcased Iris’ next-generation capability to enhance operational data exchange for domestic flights in the US. Leveraging Iris’ satellite datalink and internet protocols will enable modern data-intensive applications for airlines, ATC and pilots, with benefits for route planning, fuel consumption, delay reduction and safety. Boeing and Viasat’s partnership is the culmination of extensive trans-Atlantic collaboration of aerospace industry leaders including ESA, the Federal Aviation Administration (FAA), NASA’s Air Traffic Management – eXploration project, Collins Aerospace, Honeywell, Thales, Société Internationale de Télécommunications Aéronautiques (SITA) and academic partners like Embry Riddle Aeronautical University.

Boeing’s ecoDemonstrator programme is a proven testing ground for accelerating the deployment of new technologies. The Explorer aircraft fitted with Iris was introduced to the ecoDemonstrator lineage in 2023 as a focused testbed for new solutions. It showcased ESA’s Iris technology and demonstrated its ATN-B1 and ATS-B2-enabled ability to communicate seamlessly and reliably across different airspace jurisdictions. This crucial feature ensures continuity of service across global communication standards allowing the efficiency, sustainability and safety of that will enable Iris to be adopted by the entire industry.

The ecoDemonstrator Explorer taking off. Image credit: Boeing

Flight tests started in late October 2025 with domestic flights from Houston, Texas, and concluded in November with an overseas test flight to Edinburgh, Scotland. These trials mark a milestone for the advancement of digital aviation in global standards, and for the 4S programme’s mission to improve global safety and resilience through space technology applications.

“This partnership marks a crucial milestone towards a unified global solution for Air Traffic Management. Through this testing of interconnected digital communications, we are not only advancing operational efficiency but also moving towards safer and more efficient airspace. Ultimately, this will deliver significant economic benefits and help reduce emissions, supporting the aviation industry in achieving its sustainability goals,” said Laurent Jaffart, ESA Director for Connectivity and Secure Communications

“Boeing is proud to lead the way in advancing digital communications that enhance safety and operational efficiency in aviation,” said Todd Citron, Chief Technology Officer of Boeing. Our partnership with United Airlines and esteemed collaborators marks a significant step towards a more sustainable future for air travel. By leveraging innovative technologies, we are not only improving the flying experience but also enhancing safety, paving the way for a more secure aviation industry.”

“At United, our commitment to innovation and decarbonization is at the core of what we do,” said Lauren Riley, Chief Sustainability Officer of United Airlines, “Collaborating with Boeing and other partners on the ecoDemonstrator Explorer allows us to advance new digital technologies that make flying safer, more efficient, and lower in emissions. By deploying these next-generation solutions, we’re not only enhancing the experience for our customers and crews but also supporting our goal to decarbonise aviation.”

“As aviation evolves, so too does the need for communication systems that can support emerging requirements, such as trajectory-based operations, which demand technologies beyond current standards,” said Yann Cabaret, CEO, SITA for Aircraft. “By partnering with Boeing on their ecoDemonstrator IPS Testing program we at SITA are actively testing these innovative solutions in real-world, multi-link environments, advancing our shared vision for safer, more efficient, and better-connected skies.”

“Viasat is excited to be partnering with Boeing on the ecoDemonstrator program to show how satcom datalink supports current and future Trajectory Based Operations,” said Joel Klooster, SVP Airline Operations and Safety of Viasat. “Building off the European Space Agency’s Iris programme, now operational in Europe, this activity will demonstrate the ability of Viasat’s SB-S service to support the transition to ATN/IPS, the next generation of IP-based datalink critical to supporting increased air traffic volumes in a sustainable and efficient manner.”

ITA Airways adopts satellite technology developed by ESA and Viasat to upgrade safety and fuel efficiency

Publication date

16 Dec 2025

 An ITA Airways A320neo, the type that will feature the Iris terminal. Image credit: ITA Airways 

ITA Airways, Italy’s reference airline, has announced its adoption of the Iris system for Air Traffic Service (ATS), jointly developed by Viasat and the European Space Agency (ESA) Directorate for Connectivity and Secure Communications.

Iris will enable ITA to optimise aircraft routes and fuel consumption, increasing flight safety whilst curtailing CO2 emissions and delays. These applications are empowered by a satellite data link service complementing traditional ground-based infrastructure.

The introduction of Iris removes a bottleneck created by the explosion of data generated by modern aircraft. By distributing the data across ground and satellite networks, Iris creates a multi-link capability that will enable airlines and Air Traffic Management (ATM) to handle a larger volume of data in real time.

Since 2015, Viasat, a global leader in satellite communications, has partnered with ESA as an Iris Service Provider and key project partner (ESSP) to power the Iris service with their SwiftBroadband – Safety (SB-S) connectivity platform.

The Iris program is funded and promoted by ESA Connectivity and Secure Communications under the Space Systems for Safety and Security (4S) strategic programme Line of its Advanced Research in Telecommunications Systems (ARTES) programme, and in line with the Single European Sky ATM Research (SESAR) launched by the European Commission.

Iris is the only validated technology capable of pioneering these modern Airline Operational Communication and ATS standards. It showcases ESA Connectivity and Secure Communications’ commitment to delivering practical space-based applications through partnerships with Europe’s space industry and commercializing viable solutions to concrete challenges.

“With the addition of ITA Airways to the Iris service, another milestone has been achieved in supporting the European Commission’s Single European Sky vision for an efficient and environmentally friendly European airspace. The adoption of Iris is a key milestone for space-based solutions, supporting European Air Traffic Management, which will – in turn – pave the way for global use. By supporting Iris through an ESA public-private partnership, we are delighted to combine our expertise with those of leading aviation actors across the continent and beyond it,” said Laurent Jaffart, Director of ESA’s Connectivity and Secure Communications.

“We’re thrilled to see Iris taking to the skies on ITA Airways’ flights across Europe,” said Joel Klooster, SVP Flight Safety and Advanced Air Mobility at Viasat. “ITA has been committed to the goals of the Single European Skies initiative for a long time, and it’s been fantastic to work so closely with them, as well as our partners ESA and ESSP, to bring the benefits of Iris’ next-generation technology to more flights and passengers across Europe. We look forward to seeing success with these flights, and to rolling out the program across more routes and airlines soon.”

Iris will follow an initial deployment on four Airbus A320neo across the ITA fleet. One aircraft has already been fully operational since August 2025, introducing Iris in Europe with a view to export its gains in safety and security around the world.

Connectivity and Secure Communications programmes receive €2.1 billion at CM25 to continue driving competitive satellite communications

Publication date

10 Dec 2025

ESA Director General, Joseph Aschbacher, and Member States delegates. Image credit: European Space Agency

The European Space Agency’s (ESA) Council meeting at Ministerial level 2025 (CM25) concluded in Bremen, Germany, with Member States placing their continued trust in the Agency to lead their activities in space. In the face of a challenging geopolitical landscape, Member States placed emphasis on strengthening European capabilities to ensure our autonomy and leadership.

Member States voted on a proposal submitted by ESA Director General, Josef Aschbacher, to improve European autonomy, resilience, industrial competitiveness as well as research and development through new and continuing programmes. The proposal presented at CM25 is the first stage of ESA’s Strategy 2040, which outlines five goals that space can deliver in every aspect of citizen’s daily lives.

Read more about Strategy 2040.

Member States at the helm

With CM25, subscriptions to programmes under ESA’s Connectivity and Secure Communications reached €2.1 billion. ESA Connectivity and Secure Communications is responsible for coordinating, shaping, and supporting innovation in satellite communications, working closely with industry to bring the benefits of space technology into daily lives. The directorate is comprised of three major programmes, focused on developing competitive satellite systems and services to ensure real-world impact by securely connecting everyone and everything: the Advanced Research in Telecommunications Systems (ARTES 4.0) programme, the Moonlight programme and the ESA Programme Related to EU Secure Connectivity IRIS2.

ARTES 4.0 programme

ARTES 4.0 is Europe’s largest telecommunications and satellite communications programme, enabling companies to turn ideas and concepts into competitive products, systems and services. As the satellite communications market experiences a profound and rapid transformation, ARTES boosts European competitiveness and innovation to help strengthen our technological and manufacturing readiness levels. This programme advances European leadership in strategic areas that deliver significant economic returns and ensure that the next generation of communications technologies serve and reflect European values.

The outcome of CM25 validated the continuation of ARTES’s three Strategic Programme Lines (Optical and Quantum – ScyLight, Space Systems for Safety and Security (4S), Space for 5G and 6G) and its two General Programme Lines (Future Preparation and Industrial Competitiveness), totalling to a combined €1.5 billion.

This subscription re-affirms ESA’s commitment to bolster European and Canadian leadership in multi-orbital satellite communications, across LEO and GEO markets. In the next three years, the ARTES 4.0 programme will evolve, simplifying its processes to reduce time-to-market and provide industrialisation support to help scale eligible production to capture that market. Furthermore, it will harmonise co-funding schemes across ESA’s research and development programmes, federating technology developments for system, space, ground and user segments. New key partnerships and project developments will also be folded into existing programme lines. This will include direct-to-device (D2D), and projects to advance and validate cutting-edge optical and quantum communication systems to enable high-capacity, secure data transmission and quantum key distribution (QKD).

Read more about ARTES 4.0.

Moonlight Programme

The Moonlight programme aims to give Europe a first-mover advantage in off-planet satellite telecommunications and navigation. By establishing common infrastructure and services, Moonlight will reduce the complexity and mass of future missions for the Moon, creating a cost-effective, sustainable model of space exploration. With hundreds of missions and payloads planned for the moon in the next decade, Europe is in a position to capture this promising new market and ensure strategic autonomy for independent exploration endeavours.

Subscriptions to the Moonlight programme reached €176 million at CM25. The programme will move forward with our endeavour to secure European leadership in the lunar economy.

Moonlight is central to ongoing international cooperation and the development of global standards. Our Member States will benefit from the programme’s economic and industrial impacts – such as an upskilled workforce and revenue generation.

Read more about Moonlight.

ESA Programme Related to EU Secure Connectivity – IRIS2

IRIS2 is the third ESA flagship programme implemented in partnership with the European Commission, designed to develop a multi-orbit secure telecommunications programme critical to sovereign government telecommunications. The current geopolitical context has highlighted the importance of resilient and independent connectivity supported by a competitive, flexible and innovative industrial base to safeguard Europe’s strategic autonomy.

The programme subscriptions for IRIS2 at CM25 amount to €383 million. The next steps for IRIS2 will reinforce secure connectivity, strengthen Europe’s technological supply chain, and enable rapid development of new services and systems. This vision for European resilience, will see IRIS2 evolve into a multi-domain system-of-systems and become the secure telecommunications backbone of ESA’s European Resilience from Space (ERS). It will build upon ESA, European and national satcom initiatives while serving Earth observation and navigation missions for rapid, real-time critical operations.

Read more about IRIS2.

ESA Directors at CM25. Image credit: European Space Agency
A renewed focus on competitivity, technological independence and leadership

“During CM25, key decisions were made that will shape ESA’s activities in response to Europe’s ever-growing need for reliable, resilient, and secure connectivity,” said Laurent Jaffart, Director of Connectivity and Secure Communications. “Our vision is to connect everyone, everything, everywhere and at all times. With a subscription of over €2 billion, I look forward to continuing to work with our Member States, European Commission and partners – as together – we realise our leadership in the satellite communications domain.”

The Council 2025 at Ministerial level validated Connectivity and Secure Communications’ mandate to develop advanced communications technologies and systems, hand-in-hand with industry. The standout success of ARTES 4.0, together with Moonlight and IRIS2, will continue to foster a European industrial ecosystem capable of sustaining flexible manufacturing and innovative technologies responding to pivotal defence, governmental and commercial needs.

ESA-supported Hellenic Assembly, Integration & Testing Facility Clean Room and Infrastructure Implementation Phase begins

Publication date

27 Jun 2025

Visuals representing each project under the Greek National Satellite Space Project (GNTS), funded by the European Commission Recovery and Resilience Facility. The visual for the Hellenic Assembly, Integration & Testing Facility (HAITF) is showcased in the centre. Image credit: ESA

The European Space Agency (ESA), in collaboration with Hellenic Aerospace Industry S.A. (HAI) as prime contractor and BCT Group as main subcontractor, has officially kicked off the contract for the implementation of a cleanroom and supporting infrastructure at the Hellenic Assembly, Integration & Testing Facility (HAITF). The signature to begin the activity commenced on 20 May 2025 with a dedicated meeting held in Athens, Greece. The signatories were Alexandros Diakopoulos, CEO of the Hellenic Aerospace Industry S.A, and Stephane Lascar, former Head of Telecommunications Satellite Programmes Department within ESA’s Connectivity and Secure Communications.

This major milestone follows the successful completion of the design phase and marks the onset of the full construction and implementation phase of the HAITF project. The beginning of the contract represents a decisive step forward for the Greek National Satellite Programme and further strengthen HAI’s position within the European space ecosystem. The project is funded by the European Union through the Recovery and Resilience Facility (RRF), under the National Recovery and Resilience Plan “Greece 2.0, and is implemented by ESA on behalf of the Greek Ministry of Digital Governance.

The HAITF project was launched in November 2023 with the objective to design, build, and operate a fully functional Assembly, Integration and Testing (AIT) infrastructure at HAI’s site in Schimatari. The facility will support the end-to-end process of satellite manufacturing, from subsystem integration to environmental qualification, with capabilities including cleanroom operations, vibration testing, and thermal vacuum testing.

This contract encompasses the execution of the facility’s critical infrastructure, including civil, architectural, mechanical, and electrical elements. A major focus of this phase is the construction and formal acceptance of a state-of-the-art cleanroom environment, essential for conducting high-precision satellite assembly, integration, and testing operations. The final phase of this activity will target the commissioning of all the test equipment within the cleanroom and related infrastructure.

“The HAIT Facility, which will serve as a cornerstone of Greece’s growing space sector,” said Frédéric Rouesnel, Greek Connectivity RRF Project Manager at ESA’s Connectivity and Secure Communications. “Once operational, it will provide the national capacity to assemble, integrate, and qualify small satellites and space systems to foster technological innovation, job creation, and long-term strategic capability in space systems manufacturing and testing.”

“This facility represents a transformative investment for the entire Greek space ecosystem and an important infrastructure for the National Space Strategy,” said Prof. Konstantinos Karantzalos, General Secretary of Telecom and Post and on behalf of the Hellenic Ministry of Digital Governance. “Our expectation is that by enabling the construction, integration, and qualification of satellites and cutting-edge space systems for dual-use applications, the facility will pave the way for new technological capabilities and international collaboration and act as an accelerator for economic growth for the dynamic Greek space sector.”