Tests suggest Russian satellites can jam GPS on a continental scale
Russian satellites have been identified as the cause of mysterious, seconds-long bursts of GPS interference across Europe—a rare example of human-made GPS interference coming from space. But uncertainty still hangs over whether such interference is intentional and if it could be more powerfully weaponized as GPS jamming with continental reach in the future. The discovery came from an investigation detailed in a June 2 preprint paper by Todd Humphreys and his student Zach Clem
Researchers have identified Russian satellites as the source of widespread GPS disruption events affecting large portions of Europe and beyond. A study by scientists at the University of Texas at Austin and Stanford University analyzed data from ground-based navigation receivers and documented 75 instances of interference spanning from January 2019 to April 2026, with each event lasting under 10 seconds but detectable simultaneously across multiple countries including Norway, Spain, Poland, Greenland, and Canada. The interference targeted the primary frequency band used by GPS and other global navigation systems. While the investigation confirms the satellite origin of these disruptions, questions remain about whether the jamming is deliberate and whether such capabilities could be expanded to cause more severe, large-scale GPS outages.
GPS disruptions affecting continental regions could have serious consequences for critical infrastructure, transportation, communications, and financial systems that depend on precise satellite positioning signals.
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