This year, we celebrate the 54th Earth Day, and though our planet may be a bit worse for wear, we ought to take comfort in knowing many of us have taken notice, and taken action. Whether it’s a ...

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 ...

There's a lot more to Earth than meets the eye. Far from being just a roundish rock barreling through space, our planet is composed of several layers held together by intense forces of gravity. Our ...

CAPE CANAVERAL, Fla. (AP) — A spacecraft blasted off Monday to investigate the scene of a cosmic crash. The European Space Agency’s Hera spacecraft rocketed away on a two-year journey to the small, ...