The bright stars Castor and Pollux will be positioned to the left of the moon in the early morning hours of Aug. 19. Mercury, ...

We already know a decent amount about how planets form, but moon formation is another process entirely, and one we're not as ...

Large dark matter particles hitting Jupiter’s largest moon would form distinctive craters in its icy surface, and upcoming ...

According to new information on SkySafari 6 Pro, a program used to predict the placement of stars and planets, Thursday, Aug.

A dozen new moons have been found orbiting Jupiter, including 11 normal moons and one “oddball” moon, according to Carnegie Institution for Science.

This quiz will challenge your knowledge of Jupiter's features, moons, and the missions that have dared to get close.

The Solar System has a total of 419 known moons around planets. If we count dwarf planets, asteroids, and other worlds, the ...

Jupiter’s moons have long fascinated scientists with their potential to harbor life, challenging our understanding of ...

Often overshadowed by Europa and Ganymede, Callisto is actually one of the largest moons in our solar system. In this video, ...

And the only way that makes sense, and fits with preexisting models of the evolution of Jupiter and its inner moons, is that Io has been erupting for perhaps as long as 4.5 billion years.

The predawn hours of Aug. 8 present a perfect opportunity to see Jupiter's four largest moons line up next to the "King of the Planets" as it voyages through the stars of the constellation Gemini.