Astronomers say the water that fills Earth's oceans — and the stuff you use to brew your morning cup of coffee or tea — may be older than the sun itself.

"This finding is the first direct evidence of water’s interstellar journey from clouds to the materials that form planetary ...

Venus has long been called a dry, hellish planet veiled in clouds of liquid acid. But new study of old spacecraft data tells ...

Astronomers have spotted heavy water in the disk of a young star for the first time. What’s wild is that this water seems to ...

The discovery of ancient water in a planet-forming disk reveals that some of the water found in comets—and maybe even ...

The origin of water on Earth is a complex affair. Was it trapped in the rocks that formed our planet or was it brought by ...

Scientists detect heavy water in a planet-forming disk for the first time, revealing ancient cosmic origins. Read the full ...

Reanalysis of NASA's Pioneer Venus mission data reveals that Earth's twin contains 62% water in hydrated compounds.

In the swirling clouds of gas and dust that surround newborn stars, planets begin to form. These planet-forming disks are rich with clues about how worlds like Earth come to be. Until now, scientists ...

A new discovery by the James Webb Space Telescope has given scientists fresh insight into Venus and its potential to host life ...

The widespread death of coral reefs is the first in a series of catastrophic and potentially irreversible tipping points the ...