File:WASP-12b A Hot, Carbon-Rich Planet.jpg
Concentrated carbon can take the form of diamond, so astronomers say that carbon-rich gas planets could have abundant diamond in their interiors.
WASP-12b is located roughly 1,200 light-years away in the constellation Auriga. It swings around its star every 1.1 days. Because the planet is so close to its star, the star's gravity stretches it slightly into an egg shape. The star's gravity also pulls material off the planet into a disk around the star (shown here in transparent, white hues).
Deutsch: Künstlerische Darstellung des brennend-heißen Gasplaneten WASP-12b (Oranger Himmelskörper) und seines Sterns.