'Weak spot' in Earth's magnetic field is now larger than Canada

Scientists have discovered that the 'weak spot' in Earth's magnetic field has grown to more than 4.3 million square miles, larger than .

That is a seven percent increase from 2020 when researchers first sounded the alarm about the South Atlantic Anomaly (SAA), a region in the magnetic field of reduced intensity over Africa and South America.

The 'dent' allows the weak area of our planet's magnetic field, which has warned 'can knock out onboard that pass through it.'

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