Follow Galileo’s discovery of four of Jupiter’s moons using his new refracting telescope.

After some exploration, I discovered that the motion of these satellites was anything but random. Particularly notable were ...

Jupiter is the largest planet in our solar system with 80 moons. Galileo was the first to discover the moons of Jupiter on this day in history, Jan. 7, 1610.

But of all Jupiter’s many dozens of moons, the four discovered by Galileo still remain the most observed, as well as the most fascinating.

After doing some research, I found out that these four moons have very orderly orbits, almost all in the same plane, like ...

PASADENA, Calif. (AP) – NASA’s aging Galileo spacecraft plunged into Jupiter’s turbulent atmosphere yesterday, bringing a deliberately fiery conclusion to a 14-year, $1.5 billion exploration of the ...

Galileo has been orbiting Jupiter since December 1995, and has currently completed five very successful years of exploring the Jupiter system.

WASHINGTON - After eight years surveying Jupiter and its moons, NASA is giving its pioneering Galileo spacecraft an unusual but fitting send-off by steering it on a suicide course for the giant ...

Galileo’s observations of the moons of Jupiter provided physical proof of Copernicus’ heliocentric theory, which had previously been seen by the church and others as merely a mathematical ...

An unusually pure cloud of young, fresh ammonia ice has been found on Jupiter by NASA’s Galileo spacecraft, the first discrete cloud of ammonia ice ever seen, though the planet is known to ...

NASA's workhorse spacecraft Galileo made a final flyby of Jupiter's moon Amalthea in what is expected to mark the end of the science-gathering portion of its 13-year mission.

An unusually pure cloud of young, fresh ammonia ice has been found on Jupiter by NASA's Galileo spacecraft, the first discrete cloud of ammonia ice ever seen, though the planet is known to contain ...