Active comet. Computer illustration of a view across the surface of an alien planet towards a comet (upper centre-left),showing its coma spewing ice and dust into space. The coma of a comet is an envelope surrounding its nucleus that is formed when the comet passes close to a star and parts of it sublimate (transition directly from solid to gas) | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Van Ravenswaay, Detlev |
Taille de l’image : | 4000 px × 5329 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |