Artwork representing a Jupiter-like gas planet together with two satellites as seen from an Earth-like moon. These planets are mainly composed of hydrogen and therefore it is impossible to define a solid surface. Hydrogen is present in the atmosphere in the usual gaseous form,but deeper down,due to the extremely high pressure it comdenses into a liquid state. If pressure exceeds 4 million bars (the atmospheric pressure on Earth is about 1 bar) a new transition occurs from the liquid to the metallic state. Metallic hydrogen consists of ionised protons and electrons,such as in the Sun's interior,but at a temperature 1000 times lower | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Butler, Chris |
Bildgröße: | 4173 px × 3297 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |