Galileo spacecraft

Jupiter’s Moon Callisto

With 67 confirmed satellites, Jupiter has the largest system of moons in the Solar System. The greatest of these are…

9 years ago

Jupiter’s Moon Ganymede

In 1610, Galileo Galilei looked up at the night sky through a telescope of his own design. Spotting Jupiter, he…

9 years ago

The Planet Jupiter

Jupiter is the 5th planet in the Solar System, and the largest by far, easily visible in the night sky…

9 years ago

What are the Galilean Moons?

It's no accident that Jupiter shares its name with the king of the gods. In addition to being the largest…

9 years ago

NASA’s “Remastered” View of Europa is the Best Yet

Europa, Jupiter's sixth-closest moon, has long been a source of fascination and wonder for astronomers. Not only is it unique…

9 years ago

What are Temperatures Like on Jupiter?

Jupiter, which takes its name from the father of the gods in ancient Roman mythology, is the largest planet in…

16 years ago