In the early chaos of planetary formation, before crusts cooled or atmospheres settled, water might already have been ...

Washington, DC— Our galaxy’s most abundant type of planet could be rich in liquid water due to formative interactions between ...

As more and more exoplanets are discovered throughout the galaxy, scientists find some that defy explanation—at least for ...

Tests on olivine hint that water-rich exoplanets could generate H2O internally, possibly explaining ocean worlds and even some of Earth’s early water.