Water is essential for life, but much of it remains hidden beneath the Earth’s surface in the form of invisible underground ...

Alone among known planets, Earth has vast oceans on its surface and its landmasses are marked with lakes and extensive river ...

When large masses of water are moved from one place to another, this changes the shape of Earth and leads to a phenomenon ...

How did complex life survive when Earth was frozen over? Scientists say tiny meltwater ponds on ancient ice may have been the key.

In fact, the water has gone down by “trillions of metric tons” within at least the last 20 years, which is believed to be having an impact on the Earth’s wobble.

We have an extremely incomplete picture of what these snowball periods looked like, and Antarctic terrain provides different models for what an icehouse continent might look like.

A new photo of the Earth from space has left people asking a lot of questions about how the planet looks. When you think about the Earth, one or two colors are probably the first things that come to ...

This then allowed the authors to estimate how much water once covered the planet and how much of it could be accounted for by the loss to space.

Today, more than 70% of Earth is covered in liquid water. But long before the sea became a familiar feature of our planet’s surface, the water that now fills our oceans, lakes, and streams was ...

Scientists investigated how much water Mars once had, before the planet lost it to space and elsewhere. They found the now-desert world could have had a water content similar to Earth.