The latest analysis of data from the Galileo probe reveals surprising clues about Callisto, one of Jupiter's moons. These ...

Get ready to take your space adventure to the next level as you outrun tidal waves and escape the Flickorax with Miles Callisto and his robo-ostritch best friend, Merc, from the new Disney Junior ...

Credit: NASA / ESA / Hubble Heritage Team (STScI / AURA) Callisto, the third largest moon in the entire solar system, orbits Jupiter from about 1.2 million miles away. The rocky world, discovered ...

More pocked with craters than any other object in our solar system, Jupiter's outermost and second-biggest Galilean moon, Callisto, appears geologically unremarkable. In the 1990s, however ...

New evidence from an old NASA mission supports the theory that Jupiter's moon Callisto is in fact an ocean world.