Great swaths of the planet are drier with saltier soils, jeopardizing food production and water access for billions.

Scientists still do not know where the water here on Earth came from. But two populations of so-called dark comets may tell ...

“Think about the entire globe, all the oceans on the planet – the Indian Ocean ... playing critical roles in maintaining ...

The world's oldest rocks are spread across the globe and paint a picture of Earth's turbulent early history. Here are some of the most notable and important formations scientists have discovered.

Liquid water is a cornerstone of habitability, but Mars’ frigid temperatures and thin atmosphere make its presence seem ...

The Denmark Strait cataract – the word also refers to a big waterfall, from the Greek for “downward rushing” – is way larger ...

Astronomers discover a quasar 12 billion light-years away with a water reservoir 140 trillion times larger than Earth's ...

Climate change has made great swaths of the planet's land drier and saltier, jeopardizing food production and water access ...

How much do you know about Antarctica? Take our science quiz to see if you'll freeze up or be as cool as a cucumber.

One of the most iconic species in the Olympic Region is facing a myriad of environmental threats to its populations. The ...

A new study explores how variations in Mars' crustal thickness during its ancient history may have influenced the planet's magmatic evolution and hydrological systems. The research suggests that the ...

Yet, perhaps the most awe-inspiring is this: deep beneath our feet, below the Earth's crust, lies a colossal ocean. At an ...