When Earth was a molten inferno, water may have been locked safely underground rather than lost to space. Researchers discovered that bridgmanite deep in the mantle can store far more water at high ...

Earth is famously called the Blue Planet because over 71% of its surface is covered with water, giving it a striking blue appearance when seen from space. This water, in oceans, seas, rivers, and ...

Liquid water on Earth is the reason humans can thrive on this planet. If we ever want to colonize the stars beyond our home world, we'll need to find water out there. But that's not the only reason ...