Report: Diamond 'super-earth' may not be quite as precious

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 less exquisite nature, according to new research led by University of Arizona astronomy graduate student Johanna Teske.

This super-Earth is a diamond planet

Scientists now believe that a rocky planet twice Earth's size orbiting a nearby star can actually be classified as a diamond planet.