During a brief but dramatic chapter in Earth's history about 41,000 years ago, the planet’s magnetic field nearly collapsed.

Earth's Northern Lights typically dance near the poles, but 41,000 years ago, they lit up skies over North Africa and ...

As climate change melts ice sheets and glaciers, water is being redistributed across the globe — and could end up moving the ...

Imagine waking up one morning to a world where compasses point south instead of north, where auroras shimmer across the ...