Ganymede structure. Cutaway computer illustration showing the internal structure of Ganymede,one of the moons of Jupiter and the largest moon in the Solar System. Scientists suspect Ganymede has a massive ocean under an icy crust. In fact,Ganymede's oceans may have 25 times the volume of those on Earth. Previous models of the moon showed the moon's ocean sandwiched between a top and bottom later of ice (blue). A new model,based on experiments in the laboratory that simulate salty seas,shows that the ocean and ice may be stacked up in multiple layers,more like a club sandwich. The fact that salty water may persist at the bottom of the rocky seafloor,rather than ice,is favourable for the development of life | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / JPL-Caltech / NASA |
Taille de l’image : | 3384 px × 2615 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |