Illustration of Mars over four rotations of the planet. South is at top. These observation were taken in April 1920, when Mars was at its closest for that year at a distance of 88.5 million kilometres from Earth. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Van Ravenswaay, Detlev |
Taille de l’image : | 3543 px × 3445 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |