Recent flybys of the fiery world refute a leading theory of its inner structure—and reveal how little is understood about ...

The Moon passes 5° north of Jupiter at 9 A.M. EDT ... just off the gas giant’s northeastern limb, while Io may be hidden in the planet’s shadow — it will reappear just after 9:30 P.M ...

Over the last few years, the term "Goldilocks zone" has come to be widely used to describe the range of distances from a star ...

NASA's latest discoveries about Jupiter have revealed astonishing new insights into the largest planet in our solar system. With the help of advanced technology and space probes, scientists have been ...

Over the last few years, the term “Goldilocks Zone” has become widely used to describe the range of distances from a star ...

Jupiter's moon Io circles the planet every 42.5 hours and gets pulled and pushed by the massive gravitational forces present in the planet's elliptical orbit, which reshapes the moon constantly.

Over the last few years, the term "Goldilocks zone" has come to be widely used to describe the range of distances from a star ...

Nasa’s Europa Clipper spacecraft will loop around Jupiter on a course that will carry it by Europa 49 times over four years ...

At last count, Jupiter has 95 moons, but the four main ones — Ganymede, Callisto, Io and Europa — were discovered ... for another flyby to use the two planets’ gravity to propel itself ...

This family of satellites is low-mass and orbits even closer to Jupiter than Io, the smallest and closest-orbiting ... Jupiter and its four planet-size moons, called the Galilean satellites, were ...

As for Jupiter, it will be sitting about 8 degrees directly below the moon. On the evening of May 28, a two-day-old crescent moon can be found sailing well above the planet Jupiter in the west ...