The strongest geomagnetic storm in 20 years hit Earth on 11 May, causing disruptions to power grids, broadband technology and GPS satellites in space, Quartz reported.
The solar storm was categorized as “extreme” by the US National Oceanic and Atmospheric Administration (NOAA) – and led to aurora borealis being visible in the skies over many countries.
But the charged particles from the Sun can also cause fluctuations in Earth’s magnetic field, which can impact communications infrastructure.
The NOAA’s Space Weather Prediction Center reported power grid irregularities, loss of high-frequency communications and GPS disruptions.
This included the GPS used in John Deere precision-farming tractors in the US, according to reports.
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