Mars exploration. Artwork of a Martian explorer walking in a spacesuit on the surface of Mars,with a fellow explorer driving a vehicle at right. Humans require protective suits and sealed vehicles to explore Mars. This is because the thin atmosphere is nearly all carbon dioxide,and the freezing surface temperature ranges from minus 89 to minus 31 degrees Celsius. Mars has no surface water and is a rocky desert world. It has a gravity that is about a third of that of Earth | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Hardy, David A. |
Bildgröße: | 3969 px × 4422 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |