Dark streaks on Jupiter's icy moon Europa might actually be sea salt

Europa might be a salty moon. A NASA experiment suggests that mysterious, dark streaks seen on the surface of Jupiter’s moon Europa might be caused by a combination of sea salt and a whole lot of space radiation According to space agency scientists, research shows that salt from Europa’s underground ocean may find its way to the surface of the moon. The salt would then be bombarded by radiation that causes it to turn dark in color, perhaps creating the distinctive streaks observed, the new s...