Io, one of Jupiter’s Jovian moons, is the most volcanic place in our entire Solar System. Over the last few years NASA’s Juno ...

The test validated JUICE's RIME radar, which will explore Europa, Ganymede, and Callisto for signs of life under their frozen ...

On the early morning of August 8, Jupiter's four largest moons will align, offering a spectacular view for stargazers in the U.S.

American space agency NASA says it used the gravity assist maneuver the Europa Clipper conducted back in March to test the ...

Catch the solar system’s largest planet satellite sharing the constellation Gemini the Twins with our Moon this morning ...

One of the brightest stars in the night sky seems to be orbited by a planet like Jupiter. The news is sure to cheer fans of the Avatar series, which centers on a moon that orbits a fictional gas giant ...

July 25 has been a date marked by remarkable events that have shaped history.One of the most profound events occurred on July 25, 1610, when Galileo Galilei ...

Scientists at the Carnegie Institution for Science have discovered 20 additional moons orbiting Saturn -- and they are asking the public to help name them. "We want to get the world involved ...