Science, Water | featured news

A NASA rover scouting for signs of past water on Mars has found the strongest evidence yet -- a vein of gypsum, a mineral deposited by water, protruding from an ancient rock.

New evidence supports the theory that comets delivered a significant portion of Earth' s oceans, which scientists believe formed about 8 million years after the planet itself.

Scientists analyzing bits of hardened lava from long-ago lunar eruptions found about as much water as in similar magmas on Earth.

European scientists say they've figured out the recipe for water in space: Just add starlight.

Scientists have found lots of life-essential water – frozen as ice – in an unexpected place in our solar system: an asteroid between Mars and Jupiter.

Images taken by NASA's Mars Reconnaissance Orbiter show a 30-mile-long canyon and beach remnants surrounding a basin.

Mars appears to have had running water on its surface about one million years ago, according to new evidence.