#story intro {data-height=120}
Australia is reliant on satellites it doesn’t own. Farmers, banks, emergency services, and defence forces all depend on foreign infrastructure with no backup plan. And what’s more, the orbital environment that is needed to make it possible is quietly approaching a point of no return. This crisis hiding just out of plain sight, 550 kilometres above our heads.
#chart 1: The Sky Is Crowded {data-height=650}
Since 1957, the number of tracked objects in Earth orbit has increased from one, to almost 45,000. The numbers accelerated in 2019, with the introduction of commercial megaconstellations. Permanent un-steerable, un-slowable debris objects now outnumber active satellites more than 2 to 1.
#chart 2: Who Put It Up There? {data-height=680}
The USA operates 68% of all active satellites, driven by SpaceX’s Starlink constellation. The United Kingdom (651) and China (617) follow. Australia operates only 23 satellites, 0.3% of the global total, yet depends on foreign satellites for 100% of the critical infrastructure.
#chart 3: Australia’s Invisible Infrastructure {data-height=700}
Every major sector of Australia’s economy depends on foreign satellite services, and most don’t have a domestic alternative. Bubble size represents estimated GDP exposure. Red means no domestic backup capability exists.
#chart 4: Near-Misses Are Skyrocketing {data-height=680}
Satellites in low-Earth orbit triggered over 167,000 conjunction warnings, in 2025 alone. Conjunction warnings are alerts that two objects may pass dangerously close. That year, active satellites performed over 2,500 emergency avoidance manoeuvres. Each costing fuel, shortening lifespan, and representing an unreported near-miss.
#chart 5: The Kessler Zones {data-height=720}
Not all orbits are equally at risk. The 400–800 km band, home to Starlink, Australia’s NBN Sky Muster, weather satellites, and emergency communications, is so congested now that ESA’s MASTER-8 debris model shows debris density approaching active satellite density. Just one collision here could trigger a Kessler cascade, a chain reaction which would render the entire shell unusable for generations.
#References {data-height=380}
References
European Space Agency. (2026, May 1). ESA’s annual space environment report (Issue 10.0, GEN-DB-LOG-00288-OPS-SD). ESA Space Debris Office. https://www.sdo.esoc.esa.int/environment_report/Space_Environment_Report_latest.pdf
European Space Agency. (2025). ESA space environment report 2025 (Issue 9). ESA Space Debris Office. https://www.esa.int/Space_Safety/Space_Debris/ESA_Space_Environment_Report_2025
ESA Space Debris Office. (2024). Space environment statistics [DISCOS Web Portal, MASTER-8 model, reference population 08/2024]. https://sdup.esoc.esa.int/discosweb/statistics/
Union of Concerned Scientists. (2023, May 1). UCS satellite database (version 5-1-2023) [Data set]. https://www.ucsusa.org/resources/satellite-database
Space Industry Association of Australia. (2025). Australia’s hidden dependence on foreign satellites [cited in Mirage News, 2025]. https://www.miragenews.com/australias-hidden-dependence-on-foreign-1459581/
Australian Government Department of Defence. (2024). 2024 national defence strategy. https://www.defence.gov.au/about/strategic-planning/2024-national-defence-strategy
Australian Bureau of Statistics. (2024). Australian national accounts: National income, expenditure and product, 2023–24. https://www.abs.gov.au/statistics/economy/national-accounts
Kessler, D. J., & Cour-Palais, B. G. (1978). Collision frequency of artificial satellites: The creation of a debris belt. Journal of Geophysical Research, 83(A6), 2637–2646. https://doi.org/10.1029/JA083iA06p02637