Water. All life on Earth requires it in some way or another, and it's hard to miss that roughly 70% of our planet's surface is covered in the stuff. Thus, understanding where Earth's water came from ...

Alone among known planets, Earth has vast oceans on its surface and its landmasses are marked with lakes and extensive river drainage systems. Water is the biosphere's lifeblood, and without it, Earth ...

Researchers say they have uncovered evidence that early Earth was home to more hydrogen than previously thought, calling into question widely held beliefs about the origins of water and the evolution ...

When Earth was a molten inferno, water may have been locked safely underground rather than lost to space. Researchers ...

For centuries, people have wondered where Earth’s vast oceans came from. Our planet didn’t form with much water, yet today it’s covered in it. New research using powerful radio telescopes is bringing ...

The first water molecules may have formed just 100 million to 200 million years after the big bang – before even the first galaxies – kicking off a process that led to life on Earth… and possibly ...

A meteorite found in Antarctica in 2012 suggests Earth may have formed with the materials needed to make water, a new study hints. When you purchase through links on our site, we may earn an affiliate ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. In the 1931 movie ...

Grab-and-go missions to asteroids have provided some of the most scientifically valuable samples since the Apollo ...

This is a colored view of the C-type asteroid 162173 Ryugu, seen by the ONC-T camera on board of Hayabusa2. Filters: vwx date:2018-07-12 08:01 Image level: 2b (Images after hardware correction and ...