Diamond is well-known for being the hardest natural material on Earth, though synthetic forms have been developed that are even tougher – a feat that researchers have managed again, through a new ...

The enigmatic allure of Neptune has long captivated astronomers and scientists alike, with recent studies suggesting the possibility of vast oceans of liquid diamond beneath its surface. This ...

The graphite found in your favorite pencil could have instead been the diamond your mother always wears. What made the difference? Researchers are finding out. How molten carbon crystallizes into ...

In 1967, a hexagonal form of diamond, later named lonsdaleite, was identified for the first time inside fragments of the Canyon Diablo meteorite, the asteroid that created the Barringer Crater in ...

NASA's MESSENGER mission has revealed that Mercury, the solar system's tiniest planet and the closest to the sun, hides a big secret. When you purchase through links on our site, we may earn an ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." For people who want to get married, the diamond engagement ring is a tale as old as time—and advertisers ...

Molten carbon can crystallize into diamond or graphite, but it has been difficult to study this process. New simulations show that graphite can sometimes "hijack" the pathway that would lead to ...