Tests suggest Russian satellites can jam GPS on a continental scale
Summary
Ars Technica reports that Russian satellites may be causing GPS interference across Europe, suggesting a space-based jamming capability with continental reach. A 2019–2026 GNSS data analysis by University of Texas at Austin and Stanford researchers found 75 days with widespread interference overlapping GPS L1, implying a high-altitude source. The article discusses whether the activity is intentional or experimental and notes expert skepticism about Russia using space assets for GPS jamming, with broader implications for navigation security.