Astronaut on Mars. Artwork of an astronaut on Mars standing next to a US flag. The Martian atmosphere is mostly carbon dioxide and surface temperatures are well below freezing. Martian astronauts will have to breathe their own air supply and wear heated spacesuits. Mars is a rocky desert world and has no surface water. The gravity is about one third of that on Earth. Human missions to explore Mars have been planned since the 1950s,usually involving a period of 10 to 30 years to develop the necessary technology and resources | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Van Ravenswaay, Detlev |
Bildgröße: | 5137 px × 3402 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |