Scientists at Yale and in Singapore have devised what may be the ultimate acid test—a comprehensive model for estimating the origins of Earth's habitability, based in part on ocean acidity. The new ...

The Earth is embraced by its oceans and seas. And so are we. We depend on them for more than half of the oxygen we breathe. Ocean currents shape the slow march of climate and the daily changes of our ...

Using carefully selected terrestrial rocks, engineers try to figure out how to work with crumbly rocks like the one the rover encountered on its first sampling attempt. Using carefully selected ...

With over 5,000 exoplanets — planets beyond our solar system — discovered to date, there's a growing interest in locating which of these planets might be habitable. It's no easy matter to find a ...