Diamonds are relatively rare here on Earth, but perhaps on other planets they’d be so common they’d be as worthless as a handful of dirt. Astronomers suggest that some planets might actually be ...

Researchers theorize that, under the right conditions, carbon-rich exoplanets could generate huge quantities of diamonds beneath their surface. The recipe including heat, pressure, carbon, water, and ...

Forget the diamond as big as the Ritz. This one's bigger than planet Earth. Orbiting a star visible to the naked eye, astronomers have discovered a planet twice the size of our own made largely out of ...

Freelance writer Amanda C. Kooser covers gadgets and tech news with a twist for CNET. When not wallowing in weird gear and iPad apps for cats, she can be found tinkering with her 1956 DeSoto. Diamonds ...

Planets made of precious diamonds could exist within our galaxy, scientists say. But sadly for those daydreaming of a glittering oasis, such a planet could not support life as we know it. According to ...

A planet 40 light-years from our solar system, believed to be the first-ever discovered planet to consist largely of diamond, may in fact be of a less exquisite nature, according to new research led ...