As much as 45 oceans’ worth of hydrogen may be in Earth’s core, scientists reported, suggesting most of Earth’s water was ...

Earth’s magnetic field, the invisible barrier that deflects solar radiation and makes surface life possible, is not permanent ...

A new study analyzes three asteroid and two meteorite samples to see if space rocks smacking into Earth could’ve helped ...

Geoscientists say Earth will be home to one massive supercontinent about 200 million years from now; there are four prominent versions of this mega-continent. The climate might be surprisingly balmy ...

The asteroid, around 100 feet in diameter, is speeding toward our planet at about 22,000 miles per hour, according to NASA.

An experiment to quantify the amount of the universe’s lightest element in Earth’s core suggests that the planet’s water has mostly been here since the beginning ...

The world's forests are changing silently, and scientists are warning about the loss of key tree species and lack of biodiversity.

Key climate tipping points may be closer than expected, raising the risk of accelerating warming, sea-level rise, and ...

Life on Earth may exist thanks to an incredible stroke of luck — a chemical sweet spot that most planets miss during their formation but ours managed to hit.

Scientists say warming is increasing faster than at any time in at least 3 million years. There is no guide for what comes ...