The substrate everything else is built on.

The UN Office for Outer Space Affairs opened a UN Satellite Operator Contact Hub at soch.unoosa.org, which its own pages call "a restricted coordination directory maintained by" the Office, holding operator contacts for "pre-deployment planning, in-orbit operations, and 24/7 emergency escalation" across all orbit regimes, with access limited to verified operators, Member States, UN partners and administrators. The site states it "is not a real-time tracking system"; the announcement says participation is "voluntary and free of charge" and that the hub "doesn't track satellites or assess collision risk." UNOOSA announced it as open for registration on the Office's own LinkedIn page in September 2026, without stating a launch date, so this row carries month precision. Three antecedents are documented and uncited by the announcement: Long-term Sustainability Guideline B.1, adopted by COPUOS in 2019, has states route updated contact information for their conjunction-assessment entities to the Office "so that the Office can make it available"; UNOOSA reported in February 2025 that it has kept such a list since 2019 and that an October 2024 dialogue urged it to "explore how to operationalize the existing list"; and Canada proposed a voluntary, access-controlled operator contact list to the Committee's sixty-ninth session in June 2026. The hub was first named in a UN document in an expert-group working draft of 13 August 2026, still being consolidated; no COPUOS decision or General Assembly resolution establishes it. No participation figure is published, and on 10 September 2026 the Terms and Conditions the registration form requires agreeing to resolved to the homepage.

ICAO issued a statement on the safety and security of international civil aviation listing long-range weapons systems, unmanned aircraft systems, global navigation satellite system radio-frequency interference, and advanced air-defense systems among the military technologies jeopardizing civilian aviation. It said it is observing heightened risks of civil aircraft being targeted or caught in crossfire and that the industry's ability to reroute flights does not address the underlying security threat. The statement said member states must assess the safety of airspace they control, share threat intelligence rapidly when activities pose risks to civilian aircraft, strengthen risk-assessment mechanisms and timely decision making, and improve civil-military coordination to prevent misidentification of civil aircraft as military targets. ICAO said it is updating its Manual Concerning Safety Measures relating to Military Activities and its Risk Assessment Manual for Civil Aircraft Operations Over or Near Conflict Zones. It cited Article 3 bis of the Chicago Convention and Assembly Resolution A42-4 and named no state.

Ukraine's Foreign Minister Andrii Sybiha said Ukraine had officially notified ICAO that Russian airspace is not safe for civilian aviation because of increased military activity and urged airlines and governments to avoid it, a day after President Zelenskyy warned airlines that Ukrainian drone operations inside Russia were expanding. The underlying letter, from Minister for Recovery, Infrastructure and Transport Mykola Kalashnyk to ICAO Secretary General Juan Carlos Salazar and obtained by ZN.UA, asked ICAO to urge member states to prohibit civil flights in Russian airspace; it cited three aircraft struck by Russian air defenses since 2023 and said aggressive electronic warfare and GPS spoofing over the Baltic states and Russia had affected tens of thousands of Ryanair, Wizz Air, and Finnair flights. On September 3 the head of Rosaviatsia said none of the 37 countries with air links to Russia had suspended service. On September 4 the Russian Foreign Ministry said it had sent an urgent appeal to the ICAO Secretary General, said the Ukrainian notices possess no legal force, and asked ICAO to condemn them and adopt targeted measures. ICAO's September 2 statement on threats to civil aviation named GNSS interference but no state, and no ICAO Council action on the letter had been announced.

The President signed H.R. 6500, the Continuing Appropriations and Extensions Act, 2027, which provides fiscal year 2027 appropriations to federal agencies at the rate for operations in the applicable fiscal year 2026 acts — including the Commerce, Justice, Science act (division A of Public Law 119-74), which carries NASA and the Office of Space Commerce, and the Transportation-HUD act (division D of Public Law 119-75) — until an FY2027 appropriation is enacted or December 11, 2026, whichever comes first. The Senate passed the bill as amended on August 8, 2026, 90–6; the House agreed to the Senate amendment on September 1. The Act's only space-specific provision, Section 121, directs that NOAA procurement funds be apportioned at the rate needed to keep the Geostationary Extended Observations (GeoXO) satellite launch schedule. It does not mention the Office of Space Commerce, GPS or PNT by name.

ESA reported that its Cluster satellite Samba reentered Earth's atmosphere at 21:39:38 UTC on August 31, 2026, the third of the four Cluster satellites to do so, followed by Tango at 21:30:31 UTC on September 1 (23:30:31 CEST). Both had been lined up for targeted reentries over the South Pacific Ocean, precise enough that an aircraft carrying scientists flew from Tonga to record each demise; ESA said 29 of 30 instruments aboard returned data and that the satellites were observed for about 50 seconds on average. ESA's acting head of space debris, Stijn Lemmens, said better data on when and how reentering satellites heat up and break up, and which materials survive, would let engineers design satellites that burn up completely while also preventing pollution of the atmosphere.

NASA reported that the Republic of Türkiye signed the Artemis Accords on August 31 at a ceremony at NASA Headquarters in Washington hosted by Administrator Jared Isaacman, becoming the 71st signatory. Minister of Industry and Technology Mehmet Fatih Kacır signed for Türkiye; Turkish Space Agency President Yusuf Kıraç and U.S. Deputy Assistant Secretary of State Connor Tomlinson took part. Türkiye's Ministry of Foreign Affairs said the next day that Türkiye will continue to support international cooperation in the peaceful exploration and use of outer space, and pointed to the 77th International Astronautical Congress it hosts in Antalya on October 5–9, 2026. NASA describes the Accords as the first set of practical principles for safety and coordination among nations exploring the Moon, Mars, and beyond.

NASA's Glenn Research Center posted a draft request for proposals (Solicitation 80GRC026R0009) for a multiple-award, indefinite-delivery/indefinite-quantity contract called Space Power and Reactor Capabilities (SPARC), covering design, development, fabrication, test, evaluation, certification, delivery and sustaining operations of space nuclear systems, with industry comments accepted through September 25 and an industry day planned for September 14. The cover letter states an expected ordering period from April 15, 2027 through December 31, 2031, a final RFP on or about November 15, 2026, and a sample task order for Lunar Reactor-1 (LR-1) Phase 1; trade reporting on the notice states its primary purpose is to support technology maturation, testing and flight design for the LR-1 program, intended to develop the first operational fission reactor for the lunar surface. It remains a draft, not an award, and follows NASA's August 2025 declaration of intent to field a lunar surface reactor by 2030.

A Long March 6C lifted off from the Taiyuan Satellite Launch Center at 0321 UTC on August 25 (11:21 a.m. Beijing time) on the vehicle's second flight, carrying seven satellites, including two Zhongke X-band radar satellites and Thailand's GISTDA Cube Sat 1, per Xinhua and SpaceNews. The commercial space-surveillance company LeoLabs reported on August 28 that the rocket's upper stage had fragmented in orbit less than two days after launch; it estimated that tens to hundreds of fragments were generated, and Ars Technica reported the orbit is low enough that the debris should reenter within a few years. The reports cited carry no U.S. Space Force catalog count and no Chinese statement. The event follows breakups of Long March 6A upper stages in 2022 and 2024, which Ars Technica reported left more than 1,200 pieces cataloged by the U.S. Space Force between them.

President Trump signed Executive Order 14423, "Establishing the United States Space Academy," on August 28, 2026, at NASA's Johnson Space Center; the Federal Register published it at 91 FR 56737 on September 3. The order does not create an academy. It establishes a Presidential Commission on the United States Space Academy, chaired by the NASA Administrator, with the Secretary of War, the Assistant to the President for National Security Affairs, the Director of OMB, and the Secretary of the Air Force among its members. The Commission is to report to the President within 120 days with proposals on a governance framework, curricula, graduates' service obligations (the order names service in the Armed Forces and civilian federal service), applicant prerequisites, a process for selecting a permanent location, pilot programs, and a legislative and implementation strategy for what the order calls a proposed NASA-led federal academy; the White House fact sheet frames graduates' careers as supporting "America's military, civil, and broader space enterprise."

The Government Accountability Office reported that the Department of Defense, which relies on commercial companies for data about activities on Earth and in space, is missing opportunities to use data it has already bought. GAO found that the Space Force's Joint Commercial Operations Cell (JCO), its main buyer of such data, expended $76.8 million on data and services from the contractor-operated Global Data Marketplace from January 2023 through September 2025, supporting missions GAO listed as space domain awareness and 'tactical surveillance, reconnaissance and tracking.' Some Space Force officials told GAO of licensing costs, perceived use restrictions and concerns over long-term data access; others were not part of, and could find no public information about, the informal Cross-Government Commercial Data Sharing Working Group that JCO leads. GAO's single recommendation: the Secretary of the Air Force should ensure the Space Force develops ways to inform current and potential users about the working group and about how to access and use data and services the government has already purchased. DOD agreed. The review was directed by a congressional committee report.

The EU Agency for the Space Programme (EUSPA) announced the signing of the final site preparation and hosting contract for EGNOS V3, completing the contracting phase for the renewal of EGNOS, Europe's regional satellite-based augmentation system. A total of 25 countries (EU Member States, other participating European countries and selected cooperating countries beyond the EU) have signed contracts with EUSPA to host ranging and integrity monitoring stations, mission control centers, navigation land Earth stations and operations coordination centers on their territory. EUSPA stated that EGNOS is moving toward dual-frequency multi-constellation services that will augment GPS and Galileo signals on the L1 and L5 bands, which it said will give users, especially those in safety-critical roles such as pilots, more accurate positioning, better availability and greater resilience. No service start date was given.

At an Office of Space Commerce satellite owner/operator forum at the Small Satellite Conference on August 26, acting TraCSS program manager Ethan Baumann said the Traffic Coordination System for Space had onboarded more than 70 satellite owners and operators and more than 10 nations but remained in its pilot phase, which began in March 2026 after a late-2024 beta, because of budget uncertainty; he said the office could not state when it would declare the system fully operational and begin migrating the user community from Space-Track to TraCSS, per Via Satellite. The office's TraCSS program page states that, as of August 2026, the system had 70 pilot users comprising over 11,345 satellites in orbit and 10 national government accounts: Australia, Brazil, Egypt, Finland, Germany, Norway, the Republic of Korea, Singapore, Switzerland, and the United Kingdom.

The FAA published a request for information (Docket FAA-2026-9736, 91 FR 54909) seeking public and industry input on two elements of the 2026 National Space Transportation Policy (NSPM-17, August 20, 2026): siting a new spaceport and developing and using priority airspace for critical space launch corridors. The notice quotes the policy's direction to the Secretary of Transportation to identify potential locations for additional launch facilities. It asks about criteria for spaceport locations, why existing commercial spaceports are underused, previously proposed sites (Shiloh, Florida; Camden, Georgia; Puerto Rico; and space launch rigs), regulatory changes and funding mechanisms including public-private partnerships, and how launch corridors would be governed, timed, and kept safe. Written comments are requested by October 26, 2026. The FAA cites Executive Order 14369 (December 18, 2025) as the policy backdrop. The action is a notice and request for information, not a rule; the FAA states it is not a screening information request or request for offers.

The European Space Agency reported that its Navigation Innovation and Support Programme (NAVISP) has supported three activities that develop new ways to monitor and map GNSS interference. ARFIDAAS, developed by the Norwegian research center SINTEF, continuously monitors Galileo, GPS and GLONASS frequencies from stations including Amsterdam and Trondheim; ESA said those stations played a key role in the research that traced wide-area interference events over Europe, Greenland and Canada to a Russian military satellite system. Austria's Dimetor GmbH uses GNSS receivers mounted on mobile telecommunications towers to detect jamming and spoofing, and the Swiss startup onocoy combines artificial intelligence with a community-driven network of reference stations for the same purpose. Citing a GPSPatron analysis, ESA stated that in the second quarter of 2025 more than 10,000 ships were reported as impacted by malicious interference globally, an eightfold increase over the first quarter of 2025, and that 10% of European GDP is enabled by satellite navigation.

Poland's National Institute of Telecommunications (Instytut Łączności – PIB) published an analysis from its Gdańsk monitoring station reporting a systematic, sharp rise in deliberate GNSS interference over the Tri-City area (Gdańsk, Gdynia, Sopot) since the start of 2026; its monitoring has recorded anomalies since January 2024. It reported multi-hour, all-band disruptions on 70 percent of days in May and June (with only 10 and 13 percent of days disruption-free) and complete disruptions on 63 percent of days from August 1 to 19, meaning satellite navigation in phones and civilian receivers failed on average two days in three. The institute attributed the interference to external electronic-warfare activity in the Baltic Sea basin without naming a state, said anomalies would persist as long as operations requiring jamming emissions continue in the region, advised residents and visitors not to rely solely on phone map apps and to download offline maps, noted failures in shared bikes, scooters, and municipal fleet systems, and described recreational and commercial drone flights as extremely risky under current conditions.

The China Manned Space Agency announced on August 23 that the Chang'e-7 lunar probe did not meet launch conditions and that its launch could not take place during the planned window this year, citing a comprehensive assessment under the principles of prudence, reliability and absolute mission success; the agency did not elaborate, and no new date was announced. The Associated Press and CBS News reported the mission had been set to lift off within days from the Wenchang Space Launch Site on Hainan Island, aiming to explore permanently shadowed craters near the lunar south pole, search for water ice, and conduct environmental and resource surveys of the region.

A presidential memorandum (NSPM-17) set a goal of growing federal ranges to support more than 1,000 launches and reentries a year by 2030, directed identification of an additional designated federal-land reentry site, required U.S. government payloads to launch on U.S.-manufactured vehicles with narrow exceptions, and ordered case-by-case review of requests to launch or reenter foreign space vehicles in the United States for commercial purposes. It supersedes and revokes Presidential Policy Directive 26 of November 21, 2013, the previous national space transportation policy.

The Office of Space Commerce announced the pilot phase of a Space Commerce Certification and issued a call for interest: a single application and interagency review meant to authorize commercial activities in space not clearly governed by existing regulations, such as satellite servicing, commercial space stations, and manufacturing on the Moon. Directed by Executive Order 14335, ‘Enabling Competition in the Commercial Space Industry’ (August 2025), the process brings agencies with space regulatory authority into one unified process; agencies with existing statutory obligations retain them. The order’s Section 5 frames these as the activities ‘covered by Article VI of the Outer Space Treaty of 1967, but not clearly or straightforwardly governed by existing regulatory frameworks’ — the treaty article that makes each state responsible for authorizing and supervising its nationals’ activities in space.

NASA reported Mauritius signed the Artemis Accords in Ébène on July 17, becoming the 70th signatory and the seventh African nation to join. It capped three signings in under a month: Botswana became the 68th on June 25 and Serbia the 69th on July 16, both at NASA Headquarters in Washington.

The Space Development Agency announced $1.75 billion in contracts to L3Harris and Sierra Space for 36 missile-warning and missile-tracking satellites supporting the Golden Dome shield, with delivery targeted for late 2028. The buy brings SDA's Tranche 3 tracking constellation to 104 spacecraft when combined with the 72 satellites contracted in December 2025.

The open-ended working group on the prevention of an arms race in outer space in all its aspects met at the Palais des Nations in Geneva, July 6–10, the UN's active negotiating track on space security. Civil-society statements came on the final day: Secure World Foundation urged using Outer Space Treaty Article XI to share activity information through UN mechanisms, designating protected civilian and humanitarian space systems, and commitments to refrain from non-consensual rendezvous and proximity operations.

EASA published Revision 4 of Safety Information Bulletin 2022-02, its standing guidance on GNSS outages and alterations, following analysis of recent jamming and spoofing occurrences. The revision adds standard pilot–ATC phraseology, electronic-flight-bag integration, new operational and training requirements, and air-traffic-control capacity measures; EASA and EUROCONTROL said their dedicated joint task force on GNSS interference will keep monitoring.

P&I club Skuld, citing UKMTO/JMIC advisories, reported persistent GNSS interference across the Hormuz approaches, Gulf of Oman, and Arabian Gulf, continuing since March at reduced intensity, with masters advised to cross-check positions by radar and visual bearings.

Coordination response: Coordination ran through maritime channels: UKMTO/JMIC navigational-safety advisories and the IMO's MSC 111 receiver-standard updates (May 2026). As a maritime, not aviation, theatre it drew no ICAO-level state condemnation.

The Office of Space Commerce reported the United Kingdom and Australia became the first National Government Account users of TraCSS, the U.S. civil space-traffic coordination system, with read-only views of safety data for spacecraft affiliated with their countries. OSC counted 52 pilot users from 21 countries covering more than 11,000 spacecraft: a national system onboarding foreign governments in the absence of any binding international traffic regime.

The House E&C communications subcommittee examined U.S. PNT capabilities ("Where Are We?"); testimony counted more than 55,000 commercial-aviation GPS interference events in 2025, up 24% in a year. No legislation emerged from the hearing.

Researchers Clements, Kriezis, and Humphreys reported detecting and identifying a space-based GNSS interference source behind scores of powerful transient wide-area events over continental Europe, Greenland, and Canada since 2019, attributing it to a constellation of Russian early-warning satellites in Molniya orbits. Submitted for review to the Institute of Navigation journal NAVIGATION; not yet peer-reviewed.

The UN's space-governance committee opened its 69th session in Vienna on June 10 by admitting Côte d'Ivoire, The Gambia, Honduras, Maldives, Malta, and Zimbabwe (membership now 110) and electing Italian Space Agency president Teodoro Valente as chair for 2026–2027. Secure World Foundation reported the Committee was not able to adopt its report by consensus, leaving no agreed agenda or work schedule for 2027; Italy will hold intersessional consultations aiming at agreement by October 2026.

The House Armed Services chairman's mark of the FY27 NDAA (H.R. 8800) was reported to designate a single Pentagon official to oversee the DoD PNT enterprise, including alternative-PNT programs; full-committee markup followed June 4.

Lithuania's communications regulator RRT reported spoofing antennas in Kaliningrad rose from three in early 2025 to 36, with effects reaching roughly 450 km into six neighboring countries. The regulator described the interference as systemic rather than occasional.

Coordination response: Part of the Russia-attributed Baltic campaign that drove the 13-EU-member-state letter to the European Commission (June 2025), the EASA–EUROCONTROL Joint Action Plan (March 25, 2026), and ICAO's 42nd Assembly condemnation of Russia by name (Oct 3, 2025).

An RAF flight returning Defence Secretary John Healey from Estonia reportedly lost satellite navigation for the full three-hour flight; pilots reverted to backup navigation. A UK defence source blamed Russian interference. It was the second UK defence secretary's flight affected since March 2024.

Coordination response: Falls under the Russia-attributed interference ICAO's 42nd Assembly condemned by name (Oct 3, 2025); raised by the UK and allies through NATO channels. No standalone state response to this specific flight.

SpaceX's IPO registration statement discloses that its ~9,600 Starlink satellites accounted for roughly 75% of all active maneuverable satellites in orbit and proactively performed over 1,000 automated collision-avoidance maneuvers per day in 2025, and lays out plans for orbital AI-compute constellations "with potentially millions of satellites" beginning as early as 2028. Orbital-congestion figures, now on the record in a sworn securities filing.

Lebanon's active NOTAM warns of possible GNSS loss in the Beirut flight information region due to increased jamming and spoofing, directing crews to conventional routes. It was issued mid-May amid regional escalation.

At MSC 111 (May 13–22), the IMO adopted amendments to resolution A.1046(27) on the Worldwide Radionavigation System adding requirements for GNSS augmentation, plus a revised performance standard for shipborne BeiDou receivers.

Terminated after roughly $6.3B over testing failures, weeks after industry urged completing it (see Sep 2025 letter). GPS control pivots to Lockheed Martin's legacy AEP ground system under a $105M April 2026 upgrade contract; OCX stays in limited use for GPS III checkout.

Windward reported GPS and AIS jamming affecting more than 1,650 ships on March 7 (up 55% in a week) across at least 30 jamming clusters from Kuwait to Muscat. UKMTO logged 13 incidents in nine days.

IATA's 2025 Annual Safety Report counted jamming incidents up 67% and spoofing up 193% versus 2023; its director general called the interference "unacceptable and irresponsible."

Independent analysts reported a short-lived spoofing event near DFW: notable because the area's larger 2022 interference mystery was never solved.

The UK announced £180 million for the next phase of the NPL-led National Timing Centre, a terrestrial atomic-clock network providing sovereign backup to satellite-derived time, following the November 2025 £155M resilience package.

Within 24 hours of the late-February strikes, Windward reported more than 1,100 vessels with GPS/AIS interference across the Gulf. Spoofed positions placed ships at airports and a nuclear plant; Hormuz transits ran about a third below normal.

Executive Order 14369, ‘Ensuring American Space Superiority,’ set the administration’s space priorities: returning Americans to the Moon by 2028 and initial elements of a permanent lunar outpost by 2030; the ability to ‘detect, characterize, and counter threats’ to U.S. space interests ‘from very low-Earth orbit and through cislunar space’ (the region between Earth and the Moon), including any placement of nuclear weapons in space; at least $50 billion of additional investment in American space markets by 2028 and a commercial pathway to replace the International Space Station by 2030; and ‘effective and responsible approaches to space traffic management; orbital debris mitigation and remediation; and terrestrial and cislunar positioning, navigation, and timing,’ including establishing the United States as ‘the standards and services leader in these areas.’ It directed a space security strategy and a State Department plan to strengthen ally and partner contributions to U.S. and collective space security within 180 days, and directed NASA, within 120 days, to ensure its international civil space cooperation arrangements support the order’s priorities, including by modifying or terminating existing arrangements where appropriate. It revoked Executive Order 14056 of December 1, 2021 (The National Space Council) and amended Space Policy Directive 3 so that basic space situational awareness data and traffic-management services are ‘available for commercial and other relevant use’ rather than ‘provided free of direct user fees.’ The Space Force’s Objective Force 2040 Baseline (p. 12) names the order, alongside the 2026 National Defense Strategy, among the guidance its force design aligns with.

Consolidated FAA guidance for operators and pilots on recognizing, mitigating, and reporting jamming and spoofing (v1.0 dated Dec 4, 2025; updated v1.1 March 2026).

The UK's science department announced £155 million for PNT resilience: £71M toward an eLoran terrestrial backup, £68M for the National Timing Centre, £13M for GNSS interference monitoring, and £3M for space-based time-transfer research.

Five contracts (incl. NAB, Iridium, UrsaNav, Viavi) to deploy and test technologies that can back up GPS timing and positioning.

ICAO's 42nd Assembly endorsed the Council's determination that recurring GNSS interference originating from Russia (and, in a companion resolution, North Korea) constitutes an infraction of the Chicago Convention, and urgently called on both states to cease.

The State Department reported that 13 nations signed the Artemis Accords in fiscal year 2025 — the Dominican Republic, Estonia, Cyprus, Chile, Denmark, Panama, Austria, Thailand, Liechtenstein, Finland, Bangladesh, Norway, and Senegal — a 30 percent increase that brought total signatories to 59 by September 30, 2025.

The FAA's commercial space office reported authorizing 204 licensed operations in fiscal year 2025 — 195 launches and 9 reentries, an increase of 56 over FY 2024 — and marked its 1,000th licensed or permitted commercial operation in August 2025. It issued 35 license modifications in the year, including five authorizing Starship Super Heavy test flights.

A 14-organization coalition spanning aviation, maritime, automotive, and satellite sectors wrote to the Secretaries of Defense and Transportation urging GPS modernization: aging-satellite replacement, the OCX ground segment, and counter-spoofing signal authentication.

Under Executive Order 14335, 'Enabling Competition in the Commercial Space Industry,' the Office of Space Commerce was tasked in August 2025 with developing authorization for novel space activities under the order's Section 5, with framework development continuing into FY 2026 alongside interagency partners and the private sector. The order directs agencies to streamline licensing and accelerate spectrum coordination.

NASA declared its intent to field a lunar fission surface power system of at least 100 kilowatts by 2030, framed in part as assuring 'American dominance in space.' A request for information followed on August 14, 2025, and a draft partnership announcement on August 29, 2025; the report describes the effort as initiated in late FY 2025 by a directive of the acting administrator.

The EU declared Galileo's Open Service Navigation Message Authentication (OSNMA) operational. Per EUSPA it is the first GNSS offering open-signal data authentication, letting receivers verify that navigation messages are genuine and detect spoofing.

A joint EASA–IATA mitigation plan cited IATA flight-data showing GPS signal-loss events rose 220% between 2021 and 2024 as interference spread beyond conflict zones.

The ICAO Council took up evidence from six states attributing Baltic-region GNSS interference to Russian territory, after the ITU's Radio Regulations Board geolocated sources to Russia in March 2025. A Council letter to Russia that July went unanswered.

During the June 2025 Israel–Iran conflict, Windward measured an average of 972 vessels a day with GPS jamming (peak 1,155); UKMTO and the CMF information center traced interference to the vicinity of Bandar Abbas, and some ships shifted to daylight transits.

The FCC initiated a rulemaking exploring more than 20,000 megahertz of additional spectrum for satellite use across four bands it calls 'spectrum neighborhoods,' seeking comment on avoiding harmful interference. Across the same fiscal year the commission reported processing 3,982 space and earth station applications, up about 48 percent, while cutting its pending backlog in half.

Still the live U.S. proceeding: a Notice of Inquiry (FCC 25-20) on promoting PNT technologies, not yet a proposed rule; no NPRM had been adopted as of mid-June 2026. (NextNav's 902–928 MHz petition for rulemaking is the separate WT Docket 24-240.) An earlier note here claimed a draft rule had reached White House OIRA review; that could not be confirmed against a primary source and has been corrected.

DHS Science & Technology released best practices for critical-infrastructure owners using GPS timing (document dated September 2024).

Executive Order 14186 directed a next-generation homeland missile-defense shield (the program now called Golden Dome), including development plans for proliferated space-based interceptors capable of boost-phase intercept, with the Secretary of Defense given 60 days to submit a reference architecture. The order that put interceptors in orbit on the U.S. policy agenda.

Coordination response: China and Russia answered with a May 8, 2025 joint statement: per a CSIS analysis of the reactions, it accused the United States of seeking 'strategic invulnerability' and called the program a complete rejection of the balance between offensive and defensive systems.

At the 68th session of the UN Committee on the Peaceful Uses of Outer Space, the U.S. delegation negotiated terms toward the formation of a new expert group on space situational awareness, intended to convene government and private-sector experts on spaceflight safety and coordination.

The UN General Assembly adopted resolution 79/18, 'Weapons of mass destruction in outer space,' on December 2, 2024. The State Department's account of its engagement that quarter highlighted U.S. concerns regarding efforts to develop a new satellite meant to carry a nuclear weapon as an anti-satellite capability.

Chinese media reported completion of three new long-wave timing stations extending nationwide eLoran-class coverage; National Time Service Center researchers describe the ground network as a backup to BeiDou timing for finance and communications. This is the capability the U.S. retired in 2010.

The Bureau of Industry and Security released three rules modernizing space-related export controls, all published October 23, 2024: a final rule removing license requirements for certain remote-sensing and space-logistics items, an interim final rule easing exports of certain spacecraft components to more than 40 allies and partners, and, proposed jointly with the State Department, a plan to move certain space items — including spacecraft able to refuel others — from the Munitions List to the Commerce Control List.

The International Committee on GNSS held its 18th annual meeting in Wellington, New Zealand, on October 6–11 and adopted U.S.-led initiatives, including establishing a dedicated working group on lunar positioning, navigation, and timing.

The GPS Spoofing WorkGroup's final report estimated, from ADS-B data, that civil flights affected by spoofing grew five-fold between January and August 2024, and called the figures likely undercounts.

Contracts to nine vendors under the Complementary PNT Action Plan's rapid phase: the first major U.S. procurement step toward GPS backup since the Volpe demonstrations.

Seoul reported multi-day GPS jamming attributed to North Korea affecting hundreds of aircraft and vessels, a pattern recurring since the 2010s.

A month-long suspension (Apr 29–May 31) after interference forced two flights to abandon approaches. Tartu's only instrument approach then required GPS. Estonian officials attributed the interference to Russian jamming.

A UK government flight experienced GPS jamming over the Baltic, widely attributed to Russian electronic warfare: interference reaching official state aviation.

Commercial shipping reported widespread GPS disruption amid regional conflict, complicating navigation and AIS position reporting in one of the world's busiest corridors.

After a jointly hosted workshop in Cologne, regulator and industry called rising jamming and spoofing a safety risk and agreed measures on incident reporting, manufacturer guidance, alerting, and keeping conventional navaids as backup.

Still pending: no FCC decision. House appropriators voted in April 2026 to bar funds for reconfiguring 902–928 MHz, and lawmakers pressed the plan at the June 4 hearing.

Voluntary guidance from CISA and an interagency working group walking federal buyers through PNT dependencies, resilience levels, and contract language, supporting EO 13905's procurement direction.

First wide reporting of spoofed positions corrupting aircraft navigation systems near conflict zones: the onset of the phenomenon OPSGROUP later quantified.

The FAA reported roughly 44 hours of disruption; runway 35R was declared unusable and temporarily closed. The source was never publicly identified.

Safety Information Bulletin 2022-02 alerted operators to intensifying interference in regions around Ukraine, the Baltic, and the eastern Mediterranean after Russia's invasion.

A transmitter inadvertently broadcasting in the GPS band disrupted the Denver area for roughly 33 hours; federal officials shut it down but never publicly identified the device.

Russia tested a direct-ascent anti-satellite missile against its own defunct Cosmos 1408 at roughly 465–490 km. U.S. Space Command reported more than 1,500 trackable debris pieces the same day; NASA catalogued 1,604 by March 2022, modeling that over 90% would reenter within five years. The ISS crew, astronauts and cosmonauts alike, sheltered in their docked spacecraft for two passes of the cloud.

Coordination response: Condemned the same day by the U.S. secretary of state; U.S. Space Command committed to sharing debris-tracking data with all spacefaring nations. In April 2022 the U.S. announced it would not conduct destructive direct-ascent ASAT tests: per the White House, the first country to commit. In December 2022 the UN General Assembly adopted resolution 77/41 on such testing, 155–9 with 9 abstentions.

IMO's Maritime Safety Committee issued circular MSC.1/Circ.1644 urging member states to minimize deliberate GNSS interference from their territory, warn mariners about affected areas, and prevent unauthorized transmissions on satellite-navigation frequencies.

After repeated North Korean jamming since 2010, South Korea's ministry-funded eLoran testbed began service June 1, 2021, giving ships terrestrial backup positioning around Incheon and Pyeongtaek: the capability the U.S. legislated but never funded.

Updated the national policy for space-based PNT, including resilience expectations for users and the GPS enterprise.

The Volpe Center's demonstration report evaluated 11 candidate complementary-PNT technologies. It remains the reference evaluation; no single system backs up everything.

The final BeiDou-3 satellite completed China's independent global GNSS, paired, by public accounts, with continued investment in terrestrial timing backup the U.S. lacks.

Directed federal agencies to identify PNT dependencies and develop resilience profiles: the cornerstone U.S. policy on the issue.

AIS data analyzed by C4ADS showed thousands of ships' positions over a year jumping to rings on the Huangpu's eastern bank: nearly 300 vessels spoofed in a single day. Origin unknown.

ESA reported firing Aeolus's thrusters (burns at 10:14, 10:17 and 10:18 UTC, half an orbit before a conjunction predicted for 11:02 UTC) to avoid Starlink 44 — the first time, ESA said, it had maneuvered to protect a spacecraft from a satellite in a large constellation. ESA put the collision chances at around 1 in 1,000, ten times its action threshold; coordination ran over email, and SpaceX said a bug in its on-call paging system kept the Starlink operator from seeing ESA's follow-up correspondence.

Coordination response: No binding rule followed. ESA used the event to argue publicly that negotiating by email is "an archaic process that is no longer viable" as space traffic grows, and moved to develop automated collision-avoidance systems (ESA, "Automating collision avoidance"; CREAM, started 2020).

Crews around Ben Gurion reported weeks of GPS disruption from June 2019; IFALPA documented signal loss while Israel's airline pilots association attributed false-position readings to suspected spoofing. Landings shifted to ILS.

RTI International modeled a hypothetical 30-day nationwide outage at roughly $1B per day on average ($16–35B total). That is likely an underestimate, the authors note, and impacts grow as backup clocks drift.

A long-scheduled counter rollover still caused scattered faults in older receivers, a reminder that timing dependencies hide in unmaintained corners.

"Above Us Only Stars" used publicly available data to identify 9,883 suspected spoofing instances since 2016, correlated with Russian head-of-state movements and protected facilities: the first large public evidence base.

Required DOT, subject to appropriations that never came, to establish a land-based backup timing system. It remains unbuilt, which is the open question behind most rows above.

Norway's defense ministry said jamming recorded Oct 16–Nov 7 came from Russian forces on the Kola Peninsula; Finland said Russia possibly caused disruptions that prompted GPS warnings to civil aviation in Lapland.

RTS 25 required trading systems to keep UTC-traceable, auditable timestamps, as tight as 100 microseconds, making precise time a regulatory obligation for finance.

IEEE/IEC 60255-118-1 carried forward the synchrophasor measurement requirements that, in practice, make grid wide-area monitoring a GPS-timing dependency.

Roughly twenty vessels near Novorossiysk reported positions placing them inland at an airport: the incident that brought maritime spoofing into public view.

London Economics estimated a five-day GNSS outage would cost the UK roughly £5.2 billion (£1.7B lost GVA plus £3.5B lost utility benefits): the European counterpart to the later U.S. NIST figure.

Roughly six days of jamming from five sites (Mar 31–Apr 5); the coastguard said about 70 fishing vessels turned back, and defense officials reported some 280 vessels with GPS problems, part of a pattern dating to 2010.

FINRA required member firms' business clocks to synchronize within 50 milliseconds of NIST time, with documented procedures, GPS being the common delivery path.

France, Norway, Denmark, and Germany ended Loran-C/eLoran broadcasts, closing Europe's terrestrial fallback five years after the U.S. shut LORAN-C.

A jammer used to defeat employer vehicle tracking repeatedly disrupted Newark's precision-approach testing. The FCC proposed a $31,875 forfeiture (settled in 2016 for far less): the canonical example of cheap collateral interference.

A University of Texas team steered a 65-meter yacht off course in a controlled demonstration, establishing publicly that civil GPS spoofing was practical, not theoretical.

The Coast Guard terminated the terrestrial navigation and timing backbone as redundant to GPS: the decision that created the backup gap every later row tries to close.

The first accidental hypervelocity collision of two intact satellites: the operational Iridium 33 and the long-defunct Russian Cosmos 2251 struck at ~789 km over the Taymyr Peninsula, ~16:56 UTC, closing at roughly 11.7 km/s. NASA catalogued well over 2,000 trackable fragments; roughly 700 were still tracked on orbit as of mid-2026. The event that turned conjunction screening from a courtesy into a standing duty.

Coordination response: Catalysed broad U.S. conjunction screening for all operators (18th Space Control Squadron, later the civil TraCSS at the Office of Space Commerce); no binding international debris-liability finding followed.

China destroyed its own retired Fengyun-1C weather satellite with a ballistic interceptor at roughly 860 km. NASA's debris office called the cloud the single worst contamination of low Earth orbit in 50 years; the public catalog lists 3,531 tracked fragments, roughly 2,320 of them still on orbit as of July 2026: the largest catalogued debris-generating event on record, and one still forcing ISS avoidance maneuvers.

Coordination response: A formal U.S. protest (the White House called the test 'inconsistent with the spirit of cooperation' in civil space), and, per the Congressional Research Service, Australia, Canada, the U.K., South Korea, Japan, and the EU reportedly also raised concerns. China confirmed the test twelve days later, saying it 'did not target or threaten any country.' NASA noted it conflicted with debris-mitigation guidelines China's space agency had accepted in 2002.

A modified Standard Missile-3 launched from USS Lake Erie destroyed the failing reconnaissance satellite USA-193 at roughly 250 km, an altitude chosen so that debris would re-enter quickly. The stated rationale was the hydrazine propellant tank; NASA and U.S. officials reported that the great majority of catalogued fragments re-entered within weeks to months, with the last pieces down well inside a year. The altitude contrast with the 2007 and 2021 tests is the governance lesson: where a break-up happens governs how long its debris lasts.

Coordination response: The United States notified other states in advance and framed the intercept as a public-safety measure rather than a weapons test. Russia and China publicly questioned that rationale, noting the same interceptor capability could be used against satellites; U.S. officials responded that the low intercept altitude was selected precisely to avoid persistent debris.

India destroyed one of its own satellites at roughly 280 km in a test it named Mission Shakti, becoming the fourth state to demonstrate a kinetic anti-satellite capability. India stated the low altitude was chosen so debris would decay quickly; NASA's administrator publicly criticised the test after tracking fragments thrown above the International Space Station's orbit. Most catalogued debris re-entered within months.

Coordination response: India's Ministry of External Affairs stated the test was conducted in the lower atmosphere to avoid space debris and that India opposes an arms race in outer space. NASA's administrator called the creation of debris above the ISS altitude unacceptable for human spaceflight; several states and analysts noted the test underscored the absence of any binding rule against destructive testing.

Created the permanent National Space-Based PNT Executive Committee, co-chaired by the Deputy Secretaries of Defense and Transportation. Superseded by SPD-7 (2021), which kept the committee: written when interference was a contingency, not a Tuesday.