Experts at a laboratory in Botswana managed by the Gemological Institute of America recently examined an extraordinary ...

New research led by Yale University scientists suggests that a rocky planet twice Earth’s size orbiting a nearby star is a diamond planet. “This is our first glimpse of a rocky world with a ...

Scientists at Yale University have discovered a nearby super-Earth that is a "diamond planet" -- a planet that has a mantle made of graphite and diamond. The planet, called 55 Cancri e, is just 40 ...

Diamonds may be the hardest naturally occurring substance on Earth, but space diamonds could be harder. Lonsdaleite, named after Dame Kathleen Lonsdale, a crystallographer and first woman fellow at ...

A layer of diamonds up to 18 kilometers (11 miles) thick could be tucked below the surface of Mercury, the solar system's smallest planet and the closest to the sun, according to new research. The ...

Using data from NASA's Hubble Space Telescope, astronomers analyze the atmosphere of a super-Earth for the very first time. Freelancer Michael Franco writes about the serious and silly sides of ...

New research by Yale University scientists suggests rocky planets orbiting other stars may hide thick layers of diamond beneath the surface. “A carbon-rich planet likely forms from a material called ...