H2O. An almost negligible proportion of a few per million consists of "heavy water," in which the hydrogen atoms (H) are ...

New research finds that global warming has significantly reduced the amount of water that's being stored around the world in ...

The University of Hawaii astronomer’s interest in habitable worlds began at a geothermal field in Iceland, where she and a ...

Where does water, a giver and taker of life on planet Earth, come from? When I was in junior high school, my science teacher taught us about the water cycle—evaporation from oceans and lakes ...

The building blocks of life on Earth may have been fueled by tiny sparks hopping between water droplets. Four billion years ago, Earth was a lifeless world, but a dynamic one. Crashing waves ...

And now, the Hubble Space Telescope is starting to nail down just how much water these worlds may hold. This is a particularly important measurement because nearly every place on Earth with water ...