My meaning for doing this race was just so much bigger than me — to inspire and empower other people to pursue their own potential,” Natalia Lazarus said.

In a time before cars, planes, and boats existed, have you ever wondered how and when humans first spread across the globe?

The talks signal fresh support from European allies. But they follow stalled U.S. negotiations in Miami and comments from ...

Europeans are feeling “genuine fear and distrust regarding the United States,” former Estonian President Toomas Hendrik Ilves told NBC News.

The idea that extreme climate change could one day cause a mass extinction and end the human dominance is not as farfetched ...

A new study highlights the key role the Southern Ocean plays in the Earth’s climate system. Around 12,000 years ago, the last ...

What did that feel like for him?” Boddice asked. I stared for a few seconds while Boddice smiled encouragingly, as if he’d ...

Our planet’s magnetosphere has seen dramatic shifts across its history—even total reversals—but this recent wrinkle doesn’t ...

Far beneath the waves of the southwest Pacific, scientists have finished charting a landmass so large and so coherent that it ...

Fresh evidence suggests early Earth wasn’t locked under a rigid stagnant lid but was already experiencing intense subduction.