That’s right, some scientists believe that there are planets in the universe composed mostly of diamond. According to Ohio State University Earth scientist Wendy Panero, leader of the study, “We think a diamond planet must be a very cold, dark place.” Continue reading for a video and more information.

“It’s possible for planets that are as big as fifteen times the mass of the Earth to be half made of diamond,” said Cayman Unterborn, a graduate student at Ohio State University. If the idea sounds completely foreign, it’s actually not. Geologists have long suspected that Earth’s lower mantle, just above its core, contains a diamond-rich layer. However, alien planets that contain more carbon than Earth could have much more diamond content than here at home.