When the early Earth’s magma ocean crystallized 4.4 billion years ago, the deep mantle trapped an ocean’s worth of water, ...

New evidence indicates that the deepest realm of the mantle flowed with up to 100 times more water than previously believed.

Could there be an ocean buried deep beneath our feet, hidden some 700 kilometers below the Earth’s surface? If the recent discoveries from scientific teams in Brazil and Botswana are to be believed, ...

Earth may have had fresh, not just salty, water as soon as 600 million years after the planet formed — a mere blink of an eye in geologic time. Researchers analyzed oxygen molecules within ...

(via SciShow) So we all know about the carbon cycle, and the water cycle, and maybe even the nitrogen cycle. But new research has figured out there's a salt cycle, too. Problem is, that same research ...

BYU's new hydrologic cycle, representing major water pools in blue text, natural water fluxes in black text and human-impacted fluxes in orange. Illustration by Eliza Anderson. The United States ...