Valles Marineris, Mars, Viking image. The Valles Marineris is a canyon system that is 4000 kilometres long, up to 200 km wide and up to 7 km deep. The Viking program launched two spacecraft to Mars in 1975. Mars is the fourth planet from the Sun and the second-smallest planet. It is a terrestrial planet with a thin atmosphere, having surface features reminiscent both of impact craters, valleys, deserts and polar ice caps. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / NASA / VRS |
Taille de l’image : | 5740 px × 3045 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |