The four biggest moons of Jupiter aren't just blurry smudges in Galileo's telescope anymore. The Italian astronomer Galileo Galilei discovered Ganymede, Callisto, Europa and Io back in 1610, which ...

If you buy through a BGR link, we may earn an affiliate commission, helping support our expert product labs. For scientists studying Jupiter, there’s plenty to see. The gas giant has a wealth of ...

The latest analysis of data from the Galileo probe reveals surprising clues about Callisto, one of Jupiter's moons. These discoveries could change our understanding of this icy satellite. Callisto, ...

PASADENA — US space scientists on Thursday (April 11) unveiled the interplanetary probe Nasa plans to send to one of Jupiter's icy moons as part of humanity's hunt for extra-terrestrial life.