Mars. Mosaic of images taken by the Viking I and II probes centred on 30 degrees latitude north and 30 degrees longitude. The north polar cap (white) extends up to the 80 degree latitude circle and is formed by a mixture of ice and dust. During the local winter atmospheric carbon dioxide freezes out onto the polar terrain and creates a thin white layer covering a much greater area. The northern hemisphere is characterised by vast,sparsely cratered plains such as Acidalia Planitia (dark upper centre) which has a diameter of about 2615km. The southern hemisphere is highly cratered and features large canyons system such as Valles Marineris (4000km long) seen at bottom left | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / US Geological Survey |
Bildgröße: | 3414 px × 4139 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |