SpaceWater-splitter could make hydrogen fuel on Mars A safer, low-input way to make hydrogen fuel cells could make it feasible to use renewable energy to heat homes and fuel rockets 51¶¯Âþ
SpaceRosetta probe poised to touch and taste a comet Now that it has finally reached comet 67P/Churyumov-Gerasimenko, the Rosetta spacecraft is ready to help tackle the question of how Earth got its oceans 51¶¯Âþ