Hydrogen is already a $135 billion global industry, used to produce fertilizer and other essential chemicals that support ...

Scientists have long been intrigued by the search for water beyond Earth, and NASA's 2012 discovery on Mercury has ...

Without these asteroids colliding on Earth, the authors suggest there would ... that turn into vapor at low temperatures.

Mars may be dry, dusty, and far from hospitable today, but new research suggests it once shared more in common with Earth than we thought. A team of scientists from the University of Rochester has ...

Without them, “the majority of researchers might miss the connections.” The big picture, the researchers say, is that the total amount of water in Earth’s soils has been declining since the ...

"Something like 2.7 billion people are without adequate sanitation ... depletion has doubled since 1960." Some of Earth's groundwater is fossil water, created when Earth's climate was far different.

A quick guide to Venus, which is so bright, it can be seen from Earth without having to use a telescope. It is an extremely hot planet and, because of its high temperature, has no surface water.

A quick guide to Venus, which is so bright, it can be seen from Earth without having to use a telescope. It is an extremely hot planet and, because of its high temperature, has no surface water.