The currents of the oceans, the roiling surface of the sun, and the clouds of smoke billowing off a forest fire—all are ...

Dust from asteroid Bennu is revealing a surprising origin story for life’s building blocks. New research suggests some amino acids formed in frozen ice exposed to radiation, not warm liquid water as ...

NASA’s Curiosity rover has assembled a string of chemical evidence from ancient Martian rocks that, taken together, builds ...

Tiny, invisible gases long thought to be irrelevant in cloud formation may actually play a major role in determining whether clouds form—and possibly whether it rains.

Penn State researchers think a key ingredient for life may have formed in deep freeze, not in a warm asteroid puddle. A space sample with a new twist Scientists at Penn State; led by geoscientist ...

Why the EPA’s air pollution rule change could make the air dirtier, how cancer survival hit a record-high, and what we know about the first-ever medical evacuation from the International Space Station ...