Satélite Europa

http://4.bp.blogspot.com/-cG7esufY_zY/VWTU2dQxlDI/AAAAAAAAACg/
n7VUk1O9s2c/s1600/731656main_pia16826-full_full.jpg

... ¿agua en Europa?, la luna de Júpiter...

http://i.space.com/images/i/000/015/613/i02/europe-mole-3-100430-02.jpg?1330642158