A carbon planet, also referred to as a diamond planet or carbide planet, is a theoretical type of terrestrial planet proposed by Marc Kuchner that could form from protoplanetary discs if they are carbon-rich and oxygen-poor.
A carbon planet, also referred to as a diamond planet or carbide planet is a theoretical type of terrestrial planet proposed by Marc Kuchner. The planet could form from the dusty protoplanetary discs found around many stars, if they are carbon-rich and oxygen-poor.