Carbon-rich planet,artwork. Some planets are thought to form from protoplanetary discs richer in carbon than silicates,leading to a carbon-rich planet. Earth,in contrast,is formed largely of silicates (silicon and oxygen). Carbon-rich planets would be formed mostly of various forms and compounds of carbon,such as carbides,graphite and diamond. Here,crystalline diamond structures are seen in a crater (lower right),with most of the rest of the surface covered by duller tars and other hydrocarbons. The planet's parent star is at upper right | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Cook, Lynette |
Taille de l’image : | 3697 px × 4784 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |