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 ...

A combination of satellite data and natural noises produced a soundtrack of nature.

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 ...