Earth's magnetic field acts as a vital shield against radiation arriving from space, but it is not constant. A new ...

Roughly 41,000 years ago, Earth’s magnetic field weakened dramatically as the planet’s poles began to reverse — a natural but rare phenomenon known as a geomagnetic excursion. According to new ...

There is wide consensus among climate scientists that the Earth is warming and that humans directly contributed to this change by burning fossil fuels. Pole reversals have occurred several times in ...

A perfectly preserved ancient tree fossil offered scientists an unprecedented view into a moment 42,000 years ago when the Earth’s magnetic field went haywire. The compelling 2021 study tells the ...