Snow is common in the mountain ranges outside of Athens, Greece, but rarely does it fall within the city limits. Children opted to skip online classes to play. Adults did the same, including ...

Scientists led by the University of Aberdeen have concluded that the great mountain ranges of the world produced by the collision of Earth's tectonic plates reached their great heights thanks to ...

It also shows Earth's longest chain of mountains, which appears once the sea levels have dropped 2,000 to 3,000 meters. That's the mid-ocean ridge, which stretches over 37,000 miles across the globe.