Europa is the smallest of the 4 large Galilean moons of planet Jupiter. Europa is the ice moon of jupiter, possessing a subsurface water ocean and cryogeysers. It has the smoothest surface of any body in the solar system and has a thin oxygen atmosphere.
Europa, along with Callisto, Ganymede, and Io, were discovered by the Italian astronomer Galileo Galilei in 1610.
Pan, zoom, or go full-screen with this megapixel image of Europa.
A few notable surface features on Europa:
Closeup of the Conarama Chaos region.
We now know that our universe is stranger, far more alive, than we had ever imagined. The crew of Europa One changed the fundamental context in which all of humanity understands itself.
- Dr. Samantha Unger, Europa Report