Illustration of the Jovian moon Io, seen against the backdrop of Jupiter's Great Red Spot. The latter is a vast, cyclonic storm - wider than the entire Earth - that has raged for centuries. Io, a highly volcanic world, is the innermost Galilean moon...

Artwork of Jupiter seen from Europa

Planet Pi Mensae b, illustration. Pi Mensae b is one of the most massive extrasolar planets so far found, with a mass of at least ten times that of Jupiter. It may even be a brown dwarf, as depicted in this image. The planet, or brown dwarf, is shown...

Artwork of Jupiter seen from Europa

Artwork of Europa, Io and Jupiter

A ringed blue gas giant with shepherd moon in the rings.

Artist's concept of Neptune as seen from its largest moon Triton.

Artist's concept of Jupiter as seen across the icy surface of its moon Europa.

Illustration of the gas giant planet Neptune and its largest moon Triton.

Artist's concept of a Mars-like moon in front of a gas giant.

The gas giant Jupiter seen above the surface of Jupiter's moon Europa.

Artist's concept of Saturn as seen from the surface of its moon Iapetus.

A crescent Jupiter and volcanic satellite, Io, hover over the horizon of the icy moon of Europa.

Gas giant orbiting Sirius star along with four moons.

Artist's concept of an Extrasolar Gas Giant with two of its' many moons.

Two artificial moons travelling around a gas giant devouring the natural moons.

Artist's depiction of a ringed gas giant planet surrounded by it's moons.

Artwork of Jovian moon Amalthea