Key findings
Twelve findings carry the space baseline. They are grouped by coupling and never ranked. Each resolves to its source or, where Nexus analysis is involved, to its stated method.
Contents
- ·Edition home
- ·Executive summary
- 1Orbit is shared infrastructure under growing load
- 2Key findings
- 3Systems and sectors at baseline
- 4Risks and capability
- 5Severe storm in a crowded low orbit
- 6Readings from the other desks
- 7The 2027 agenda
- 8Systems in depth
- AMethodology
- BData appendix
- CReferences and record
- ·Complete edition, for print
2.1Headline finding
ReportedEQL 4NRF-XTECH-SPACE-GLOBAL-2026-BASELINE-ORB-001
The US Space Surveillance Network catalogued 34,054 objects in Earth orbit on 4 August 2026.
| Item | Bar, scaled to the largest value | Value |
|---|---|---|
| Spacecraft, active and defunct | 19,154 | |
| Rocket bodies and other debris | 14,900 |
Source: NASA Orbital Debris Quarterly News, September 20264. Each bar counts catalogued objects; the bars sum to 34,054.
Implication
The catalogue is the shared base for traffic safety, and it is incomplete by design: it holds objects large enough to track. NASA states that millimeter-sized debris numbers about 100 million and is estimated statistically5. ESA counts about 40,000 tracked objects and estimates more than 1.2 million larger than 1 cm1. The counts use different bases and are not reconciled in this edition.
What would move it
A common basis for catalogues, the next quarterly issue and the next ESA report would each move this finding.
2.2ORB
ReportedEQL 4NRF-XTECH-SPACE-GLOBAL-2026-BASELINE-ORB-001
The US Space Surveillance Network catalogued 34,054 objects in Earth orbit on 4 August 2026: 19,154 spacecraft, active and defunct, and 14,900 rocket bodies and other debris.45
ReportedEQL 3NRF-XTECH-SPACE-GLOBAL-2026-BASELINE-ORB-002
A public tracker counted 17,099 active satellites on 26 October 2026, of which 11,148 were active satellites of one commercial constellation, about 65% (derivation (1)).3
ReportedEQL 3NRF-XTECH-SPACE-GLOBAL-2026-BASELINE-ORB-003
ESA estimates more than 50,000 debris objects larger than 10 cm and more than 1.2 million larger than 1 cm at the end of 2024, and counts about 40,000 tracked objects.1
ReportedEQL 4NRF-XTECH-SPACE-GLOBAL-2026-BASELINE-ORB-004
In 2025 there were more than 300 launches and over 4,000 new payloads, about ten a day, and more than three intact satellites or rocket bodies reentered each day on average.21
2.3SPW
ReportedEQL 4NRF-XTECH-SPACE-GLOBAL-2026-BASELINE-SPW-005
The May 2024 geomagnetic storm, the first G5 storm in over two decades, raised drag on thousands of satellites, and ICESat-2 lost altitude and entered safe mode; storm size and duration were poorly forecast even one day ahead.768
ReportedEQL 2NRF-XTECH-SPACE-GLOBAL-2026-BASELINE-SPW-006
A preprint estimates that the time to a possible catastrophic collision, if satellites stopped maneuvering, was 5.5 days in June 2025, against 164 days in 2018.9
2.4NAV
ReportedEQL 3NRF-XTECH-SPACE-GLOBAL-2026-BASELINE-NAV-007
A 2019 study sponsored by NIST estimates that GPS generated about USD 1.4 trillion of US private-sector benefit from 1984 to 2017, and that an outage would cost about USD 1 billion a day, up to 50% more in a multi-week planting-season outage.15
2.5CYB
ReportedEQL 3NRF-XTECH-SPACE-GLOBAL-2026-BASELINE-CYB-008
A cyberattack on 24 February 2022 disrupted a commercial satellite network in Ukraine and wind farms in central Europe; the company said tens of thousands of terminals were damaged, and the UK attributed the attack to Russia on 10 May 2022.201936
2.6ENV
ReportedEQL 3NRF-XTECH-SPACE-GLOBAL-2026-BASELINE-ENV-009
A 2024 modelling study estimates that satellites reentering in 2022 injected about 17 metric tons of aluminum oxides into the mesosphere, raising aluminum 29.5% above the natural level, and that constellation scenarios exceed 360 metric tons a year.10
2.7Governance
ReportedEQL 4NRF-XTECH-SPACE-GLOBAL-2026-BASELINE-GOV-010
The European Commission proposed the EU Space Act in June 2025; by November 2025 every Member State held a scrutiny reservation and delegations called the text too prescriptive and not proportionate.1424
ReportedEQL 4NRF-XTECH-SPACE-GLOBAL-2026-BASELINE-GOV-011
The FCC adopted a five-year post-mission disposal rule for low Earth orbit space stations on 29 September 2022, shortening a 25-year benchmark, and ESA reports about 80% of low-orbit rocket bodies meeting its own five-year standard.111
2.8Systemic
Expert inputEQL 2NRF-XTECH-SPACE-GLOBAL-2026-BASELINE-SYS-012
The leading compound pathway for 2027 testing is loss of satellite control or navigation during a severe storm in a crowded low orbit, while each dependency is measured only on its own. § scenario
Notes
Numbers are the edition’s reference numbers, so a note reads the same in every chapter. The full list, with every source and its licence, is in Annex C. Annex C, references
- 4NASA Orbital Debris Program Office (ed.), Orbital Debris Quarterly News, Volume 30, Issue 3, September 2026 (satellite box score as of 4 August 2026; launch table May to July 2026). National Aeronautics and Space Administration, Houston. Observation year 2026. Accessed 2026-11-03.back
- 5NASA Orbital Debris Program Office (ed.), Orbital debris frequently asked questions (more than 34,000 objects catalogued as of August 2026; about 100 million millimeter-sized pieces; 41 ISS avoidance maneuvers since 1999). National Aeronautics and Space Administration, Houston. Observation year 2026. Accessed 2026-11-03.back
- 1ESA (ed.), ESA Space Environment Report 2025 (summary page dated 1 April 2025; data through the end of 2024). European Space Agency, Paris. Observation year 2024. Accessed 2026-11-03.back
- 3McDowell, J., Active satellites statistics page (state at 2026 Oct 26; independent expert tracker, not an official catalogue; headline 17,099, category total 17,098). Jonathan McDowell, Cambridge MA. Observation year 2026. Accessed 2026-11-03.back
- 2ESA (ed.), ESA Space Environment Report 2026 (summary page dated 14 September 2026; data through the end of 2025; the full report PDF was not opened). European Space Agency, Paris. Observation year 2025. Accessed 2026-11-03.back
- 7NASA (ed.), What NASA is learning from the biggest geomagnetic storm in 20 years (article dated 9 May 2025; page updated 25 September 2026). National Aeronautics and Space Administration, Washington. Observation year 2024. Accessed 2026-11-03.back
- 6Parker, W.E. and Linares, R., Satellite Drag Analysis During the May 2024 Gannon Geomagnetic Storm, arXiv:2406.08617, 2024 (abstract page read; preprint). arXiv, Ithaca. Observation year 2024. Accessed 2026-11-03.back
- 8NOAA Space Weather Prediction Center (ed.), NOAA Space Weather Scales explanation page (G5 extreme geomagnetic storm). National Oceanic and Atmospheric Administration, Boulder. Observation year 2026. Accessed 2026-11-03.back
- 9Thiele, S., Heiland, S.R., Boley, A.C. and Lawler, S.M., An Orbital House of Cards: Frequent Satellite Close Conjunctions, arXiv:2512.09643, submitted 10 December 2025, version 3 of 29 June 2026 (abstract page read; preprint, peer review not located; the abstract of this version gives 5.5 days and 164 days). arXiv, Ithaca. Observation year 2025. Accessed 2026-11-03.back
- 15NIST (ed.), Economic Benefits of the Global Positioning System to the US Private Sector (news page dated 2 October 2019, updated 3 February 2025; study by RTI International sponsored by NIST; about USD 1.4 trillion in 2017 dollars, 1984 to 2017). National Institute of Standards and Technology, Gaithersburg. Observation year 2019. Accessed 2026-11-03.back
- 20UK Government (ed.), Russia behind cyber attack with Europe-wide impact an hour before Ukraine invasion (news story of 10 May 2022; company statements are quoted by the government and are weak evidence). Foreign, Commonwealth and Development Office, London. Observation year 2022. Accessed 2026-11-03.back
- 19CISA and FBI (eds.), Strengthening Cybersecurity of SATCOM Network Providers and Customers, Advisory AA22-076A, published 17 March 2022, revised 10 May 2022. Cybersecurity and Infrastructure Security Agency, Arlington. Observation year 2022. Accessed 2026-11-03.back
- 36UNVERIFIED, not opened: Council of the European Union (ed.), Russian cyber operations against Ukraine: declaration by the High Representative on behalf of the EU, 10 May 2022, cited from memory; the page returned an access error. Council of the European Union, Brussels. Observation year 2022. Accessed 2026-11-03.back
- 10Ferreira, J.P., Huang, Z., Nomura, K. and Wang, J., Potential Ozone Depletion From Satellite Demise During Atmospheric Reentry in the Era of Mega-Constellations, Geophysical Research Letters 51, 2024, DOI 10.1029/2024GL109280 (full text read; modelling study). American Geophysical Union, Washington. Observation year 2022. Accessed 2026-11-03. doi:10.1029/2024GL109280back
- 14General Secretariat of the Council (ed.), Note 15830/25, Regulation on the safety, resilience and sustainability of space activities in the Union (EU Space Act), progress report for the Competitiveness Council of 8 and 9 December 2025, interinstitutional file 2025/0335 (COD), 26 November 2025. Council of the European Union, Brussels. Observation year 2025. Accessed 2026-11-03.back
- 24UNVERIFIED, not opened: European Commission (ed.), Proposal for a Regulation on the safety, resilience and sustainability of space activities in the Union (EU Space Act), COM(2025) 335, published 25 June 2025, taken from search-result summaries; the Council note gives 26 June 2025 as the transmission date. European Commission, Brussels. Observation year 2025. Accessed 2026-11-03.back
- 11FCC (ed.), Second Report and Order, FCC 22-74, Mitigation of Orbital Debris in the New Space Age, IB Docket Nos. 22-271 and 18-313, adopted 29 September 2022, released 30 September 2022. Federal Communications Commission, Washington. Observation year 2022. Accessed 2026-11-03.back
