The cycling of water within Earth's interior regulates plate tectonics, volcanism, ocean volume, and climate stability, ...

When most of us look out at the ocean, we see a mostly flat blue surface stretching to the horizon. It’s easy to imagine the ...

Earth’s deepest waters are among the most hostile environments ever explored. Extreme pressure, darkness, and scarce food ...

In 2016, scientists discovered the oldest water on Earth deep within a Canadian mine, estimated to be over 2 billion years old. This rare water had been trapped underground, isolated from surface ...

When Earth was a molten inferno, water may have been locked safely underground rather than lost to space. Researchers discovered that bridgmanite deep in the mantle can store far more water at high ...

Unsustainable irrigation and drought have emptied nearly all of the Aral Sea’s water since the 1960s, causing changes extending all the way down to Earth’s upper mantle, the layer beneath the planet’s ...