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 ...

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 ...

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 ...

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 ...