Natural color image of Jupiter's moon Europa.
Europa, a moon of Jupiter, appears as a thick crescent in this enhanced-color image from NASA's Galileo spacecraft, which has been orbiting Jupiter since 1995. The view combines images taken in violet, green and near-infrared filters in 1998 and 1995. The colors have been stretched to show the subtle differences in materials that cover the icy surface of Europa.
The icy moon Europa rising above Jupiter’s cloud tops. The picture was one of a handful of the Jupiter system that New Horizons took primarily for artistic, rather than scientific, value.
This beautiful image of the crescents of volcanic Io and more sedate Europa is a combination of two New Horizons images taken March 2, 2007. Io steals the show with its beautiful display of volcanic activity.
The surface of Europa. Sulfur-rich materials there are concentrated along geological features and may reflect the composition of the subsurface ocean. Image from the Solid-State Imaging instrument onboard Galileo.
Europa, a moon among many circling Jupiter, appears to have a putative ocean hidden under its frozen surface crust. Tougher cameras, however, will be necessary to scope out the water regions beneath its shell of ice.
NASA's Cassini spacecraft captured this image on Dec. 7, 2000, just as two of Jupiter's four major moons, Europa and Callisto, were nearly perfectly aligned with each other and the center of the planet.
This artist’s concept shows NASA's Jupiter Europa Orbiter, which would carry a complement of 11 instruments to explore Europa and the Jupiter system. The spacecraft is part of the joint NASA-ESA Europa Jupiter System Mission.
The Europa Explorer would use gravity-assist flybys of both Venus and Earth, and thus would be able to deliver about three times the payload mass to the Jupiter system of previous concepts like Europa Orbiter.
Europa, as viewed from NASA’s Galileo spacecraft. Visible are plains of bright ice, cracks that run to the horizon, and dark patches that likely contain both ice and dirt.
Europa's "Great Lake." Scientists speculate many more exist throughout the shallow regions of the moon's icy shell.
Thera Macula (false color) is a region of likely active chaos production above a large liquid water lake in the icy shell of Europa. Color indicates topographic heights relative to background terrain. Purples and reds indicate the highest terrain.