Hypothetical planet X and its moon, illustration. Many astronomers suspect the presence of a large, as yet unobserved planet beyond Pluto. It may be a small gas giant similar to Uranus or Neptune. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / RON MILLER |
Taille de l’image : | 5775 px × 3850 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |