Science
Solar superstorm caused widespread US GPS errors exceeding 33 feet, study finds
Researchers found that a November 2025 solar storm expanded atmospheric disturbances into mid-latitudes, disrupting satellite navigation from coast to coast.
The short version
- A study reveals that a November 2025 solar superstorm triggered ionospheric disturbances across the continental U.S., causing GPS positioning errors greater than 10 meters (33 feet).
- The disruption caused by amplitude scintillation spanned from roughly 80 to 120 degrees west longitude, marking an unprecedented scale of interference at mid-latitudes.
- While the event occurred outside the primary agricultural season and minimized economic damage, researchers warn similar events threaten industries relying on precision navigation, such as autonomous vehicles and farming.
- Scientists are working to improve physics-based modeling and space weather predictive capabilities to better forecast future solar disruptions.
Key facts
- A solar superstorm in November 2025 generated coast-to-coast ionospheric disturbances that shifted GPS positioning by more than 10 meters in certain parts of the continental United States.[Hacker News]
- The research, led by Endawoke Yizengaw of The Aerospace Corporation, analyzed data from ground-based GNSS receivers and aurora cameras, publishing findings in Geophysical Research Letters.[Hacker News]
- The solar event expanded the auroral oval toward the equator, creating strong amplitude scintillation across mid-latitudes between approximately 80 and 120 degrees west longitude.[Hacker News]
- Disruptions from a previous May 2024 solar storm caused an estimated $500 million in losses to the U.S. agricultural sector due to navigation failures during planting season.[Hacker News]
What remains uncertain
- The full potential financial impact of a similar mid-latitude space weather disturbance occurring during peak agricultural or transportation activity periods remains unquantified.[Hacker News]