New 3-D models suggest that what’s been seen as one of Earth’s first land walkers was actually more of a flopper.

Oxygen-breathing life exists on Earth today because of changes in the planet’s magma 2.5 billion years ago, a new study says.

Just days after four people died on Everest during a crowded climb, a similar “traffic jam” scenario could play out this weekend.

Carbon capture and storage (CCS) projects around the world are hitting a wall in the face of high costs and a lack of climate policy.

Still soft ink sacs from 160-million-year-old squidlike animals have yielded pigment matching that of modern cuttlefish.

A “time traveling” solar eclipse will turn the sun into a ring of fire over Asia and the U.S. West.

An engine problem caused the rocket to automatically abort seconds before liftoff. Mission managers now hope to try again Tuesday.

A “time traveling” solar eclipse will soon turn the sun into a ring of fire for sky-watchers in parts of Asia and the U.S.

Stars whirl in a psychedelic sky, NASA spies a ghostly eye, a cloud-stained moon rises, and more in the week’s best space pictures.

In areas with high foot traffic, installations of special flooring may prove that the answer to meeting energy demand lies right beneath our feet.