Ocean on early Mars. Computer illustration showing the extent of an ocean thought to have once covered around 20 percent of the surface of Mars. Recent isotopic measurements by NASA researchers show that early Mars was considerably wetter than many previous estimates | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / NASA's Goddard Space Flight Center |
Taille de l’image : | 4179 px × 4179 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |