Europa's frozen, fissured surface, seen here in a colorized mosaic image from the Galileo spacecraft ... NASA/JPL; REPROCESSED BY TED STRYK; EUROPA WEDGE ANIMATION AND SURFACE ART BY DANA BERRY.

Amalthea, however, is tricky to spot even when you have a spacecraft. NASA's Galileo mission imaged Amalthea in 1999. Large impact craters are visible. American astronomer Edward Emerson Barnard ...

On November 5, 2002, NASA's old Galileo spacecraft was almost out of fuel. But the Jupiter mission still had some science to do. ‘On This Day in Space’ Video Series on Space.com Galileo flew ...

When Nasa's Juno probe approached Jupiter it caught sight of its four big moons - Callisto, Ganymede, Europa and Io. When Galileo Galilei's discovered these moons in 1610, it marked the birth of ...

A flyby image from the Galileo probe taken in the 1990s is the best view NASA has had so far of the moon, “Europa Clipper’s cameras will be able to observe at 12 times better resolution over a ...

The next probe to reach Jupiter's icy moon was NASA's Galileo probe in the 1990s, which found it was highly likely that the moon was home to an ocean. This time, the Europa Clipper carries a host ...

On October 29, 1991, the Galileo spacecraft flew by the asteroid Gaspra on its way to Jupiter. ‘On This Day in Space’ Video Series on Space.com Gaspra was the first asteroid to ever be visited ...