Jupiter moon key hope for alien life as water jet confirmed
Fresh data analysis from NASA's Galileo spacecraft has confirmed the probe flew through a giant plume of water vapour that erupted from Jupiter's icy moon Europa in 1997. The discovery has cemented scientists' belief that the Jovian moon, first spotted by 17th-century Italian astronomer Galileo Galilei, is the most promising place in the Solar System to look for alien life.