Water on Ganymede, and NASA Needs Your Help Which is a bigger deal to you? The discovery that there’s probably more water on Jupiter’s moon Ganymede than all the oceans on Earth? Or the fact that you can now help NASA find asteroids? Learn about both, then decide for yourself! Facebook Prev Article Next Article Space Checkout these cool gadgets... Related Posts You’ll Doubt We’re Alone In The Universe After Reading This This Is Not What Space Looks Like Space Station Commander Captures Unprecedented View of Comet Why Can’t We Build Powerful Telescopes to See Aliens On Distant Planets? Why Doesn’t Earth Have Rings? What is the universe made of?