Simulated Mars dust and titanium alloy combine to make a 3D printed material that could one day become tools or rocket parts on Mars.

A biologist explains how researchers nail down the age of ancient fossils thanks to a physical process called radioactive decay.

The joke that sparked a violent reaction from actor Will Smith at the Oscars centered on his wife, Jada Pinkett Smith’s hair loss. A dermatologist explains the causes and treatment for alopecia.

"Our theory has the potential to address not just how Earth became habitable, but also why life emerged on it," researchers say.

Special rocks called kimberlites from the deep mantle show how the rapid development of fauna 540 million years ago permanently changed Earth.

Wind turbines often can produce more power than is needed for electricity onshore. That extra energy could be put to work capturing and storing carbon.

Wind turbines often can produce more power than is needed. That extra energy could be put to work capturing and storing carbon.

A hidden layer of soil and dust on the moon is much thicker than previously known. It may reveal new info about the history of the moon.

"Understanding the history of the deep biosphere can provide insight into the evolution of life on Earth."

The first rocks recovered from the moon in more than 40 years, and taken from some of its youngest volcanic surfaces, are close to 1.97 billion years old.