Sky This Week is brought to you in part by Celestron. Friday, June 6The Moon passes 0.5° south of the magnitude 1.0 star ...

The ice on the surface of Jupiter's massive moon Europa is constantly changing, hinting at the presence of a subsurface ocean ...

Jupiter teams up with an exceedingly narrow crescent moon for the last time this year in the evening sky on May 27.

On Oct. 14, NASA's Europa Clipper mission launched from Kennedy Space Center in Florida toward one of Jupiter's largest moons. The launch was eagerly anticipated by scientists around the world, in ...

Four tiny specks of light close by the giant planet are the biggest of the Jupiter’s 95 moons. If we weren’t dazzled by Jupiter’s own glare, these moons are bright enough to be seen by the ...

Jupiter may have once been more than twice its current size, with a magnetic field 50 times stronger, say scientists who ...

On the fiery Io, the innermost and third-largest of Jupiter’s four Galilean moons, Juno's observations have provided more insights about its incessant volcanic activity. It's a world home to ...

Jupiter, the largest planet in the solar system, has long intrigued scientists seeking to understand its mysterious origins.

It's also the only moon planetary scientists know of with both an atmosphere and a magnetic field. It's also the only one of Jupiter's four large Galilean moons (the others being Europa ...

A recent study found that Jupiter was once twice the size that it is now, making it big enough to swallow up 2,000 Earths.

There are currently 92 moons known to orbit Jupiter. The four largest – Io, Europa, Ganymede and Callisto – were discovered by Galileo Galilei in 1610 when he pointed the first astronomical telescope ...

How many moons does Jupiter have? Scientists have discovered dozens of them, but the answer may be more complicated than it seems. When you purchase through links on our site, we may earn an ...