Dust off your old telescope on a clear night and look up. If you find Jupiter, you’ll likely see four small dots to the side ...

NASA's Europa Clipper is about to use Mars' gravitational pull to slingshot itself towards Jupiter's smallest moon later this ...

The brutal conditions also make Io intriguing to NASA scientists intent on learning more about the innermost and third-largest of Jupiter’s four Galilean moons. For nine years, a spacecraft ...

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, NASA's ...

The seven other planets in our solar system will line up in the night sky on Friday evening for a rare alignment called a ...

Venus lies bright but low, while Jupiter and Mars dominate. South America and the eastern Pacific Ocean get the best views of ...

Luna skims by Mercury, Venus, Uranus, Neptune, and Jupiter as it grows from a thin crescent to just past First Quarter in the ...

Of course, when looking at Jupiter with a telescope or even a pair of binoculars, we also get a view of the famous Galilean satellites ... particular night, all four moons will be in view.