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Orbit is shared infrastructure under growing load

Part I describes systems and their couplings. It ranks no country or operator and assesses no authority.

6 min read2 figures1 table11 notesNR-XTECH-SPACE-GLOBAL-2026-BASELINE

Contents
  1. ·Edition home
  2. ·Executive summary
  3. 1Orbit is shared infrastructure under growing load
    1. 1.1 The questions this part answers
    2. 1.2 The argument
    3. 1.3 Twenty couplings between five systems
  4. 2Key findings
  5. 3Systems and sectors at baseline
  6. 4Risks and capability
  7. 5Severe storm in a crowded low orbit
  8. 6Readings from the other desks
  9. 7The 2027 agenda
  10. 8Systems in depth
  11. AMethodology
  12. BData appendix
  13. CReferences and record
  14. ·Complete edition, for print

1.1The questions this part answers

Key questions

  • Where is space risk concentrated?
  • Which couplings carry space shocks into other systems?
  • Which space capabilities hold under compound stress?
  • What must 2027 evidence measure first?

In this part

  • Narrative
  • Headline finding
  • Lead figure
  • Five footprint and governance chapters
  • Twelve-domain reading
  • Sector screens
  • Dependency matrix
  • Risk objects
  • Capability ladder
  • Scenario
  • Three lenses
  • Portfolio

1.2The argument

Space is usually discussed as a launch race or a market. The 2026 evidence reads it as shared physical infrastructure: a set of orbits that carry navigation, timing and communications for other systems, and that now hold tens of thousands of catalogued objects4315.

The traffic is dense and growing. The US network catalogued 34,054 objects on 4 August 20264. A public tracker counted 17,099 active satellites on 26 October 20263. ESA reports more than 300 launches and over 4,000 new payloads in 20252, and estimates more than 50,000 debris objects larger than 10 cm1.

The hazards couple. The May 2024 storm raised drag on thousands of satellites and disturbed GPS-guided farming on the ground7. A preprint estimates that the time to a possible catastrophic collision, if satellites stopped maneuvering, fell from 164 days to 5.5 days9. A 2022 cyberattack on a satellite network showed that the ground segment is also a path of failure20.

The rules and the footprint are the least settled parts. The FCC shortened its disposal benchmark to five years11, the EU Space Act proposal is still in negotiation14, and the atmospheric effect of reentry is only modelled10.

Figure 1.1How has the estimated time to a catastrophic collision changed? CRASH Clock, days

A preprint estimates that the time to a possible catastrophic collision, if satellites stopped maneuvering or lost situational awareness, fell by about a factor of thirty between 2018 and June 2025 (derivation (3)). It is a model estimate under the authors’ assumptions, not a forecast, and peer review was not located9.

ItemBar, scaled to the largest valueValue
2018 estimate: 164 days164
June 2025 estimate: 5.5 days5.5

Source: as cited in the note to this figure. Year 2025.

Figure ID FIG-XTECH-SPACE-GLOBAL-2026-BASELINE-01-003

5.5days

CRASH Clock, June 20259

164days

CRASH Clock, 20189

≈30times

fall, derivation (3)

2025preprint

revised version of June 2026 read9

1.3Twenty couplings between five systems

The space-centred matrix types the twenty couplings between the five core systems, read for their space content. Strengths are Nexus estimates (ESTIMATED) from the cited evidence and analogue events; they set the graph that 2027 evidence will test.

Figure 1.2Couplings between the five systems

Each line is one coupling from one system to another, drawn by the strength the edition assigns. Strengths are Nexus estimates from the cited evidence and analogue events.

  • Strong
  • Moderate
  • Weak

Source: this edition’s coupling matrix (Table 1.1); status Estimated.

Table 1.1Coupling matrix: from the row system to the column system
From, toWATENEFOOHLTBIO
WAT Water·WEAK
no documented link		WEAK
no documented link		WEAK
no documented link		WEAK
no documented link
ENE EnergyWEAK
no documented link		·WEAK
GPS-guided farming runs through space, not energy		WEAK
no documented link		WEAK
no documented link
FOO FoodWEAK
no documented link		WEAK
no documented link		·WEAK
no documented link		WEAK
no documented link
HLT HealthWEAK
no documented link		WEAK
no documented link		WEAK
no documented link		·WEAK
no documented link
BIO BiodiversityWEAK
no documented link		WEAK
no documented link		WEAK
no documented link		WEAK
no documented link		·
Strength: strong, moderate or weak; a Nexus estimate (status Estimated) from cited evidence and analogue events. The scale is defined in Annex A.

Transmission paths

  1. 01

    SPW → INF

    A severe storm raises drag and strains maneuvering across crowded orbits.

    Inferred 2024 storm and CRASH Clock79

  2. 02

    INF → DAT

    Orbit carries navigation and communications that other systems use.

    Reported GPS benefit study15

  3. 03

    SPW → FOO

    A storm degraded GPS-guided farming in 2024.

    Reported NASA article7

  4. 04

    DAT → INF

    A ground-segment cyberattack disabled terminals in 2022.

    Reported UK attribution20

  5. 05

    GOV → INF

    Disposal and licensing rules set the debris trajectory.

    Reported FCC and EU1114

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

  1. 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
  2. 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
  3. 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
  4. 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
  5. 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
  6. 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
  7. 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
  8. 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
  9. 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
  10. 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
  11. 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

Cite this chapter

Valadbaygi, S. (Ed.). (2026). Chapter 1: Orbit is shared infrastructure under growing load. In Exponential Technology Report 2026: Space and Orbital Infrastructure (Baseline Edition 2026, Report No. NR-XTECH-SPACE-GLOBAL-2026-BASELINE) [Draft under review]. The Global Centre for Risk and Innovation (GCRI).

Every citation form of the whole report, BibTeX and RIS included, is on the edition home. Cite this report

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