On Jan. 7, 1610, Galileo discovered four moons revolving around Jupiter — a discovery that would change his life forever. These four moons are Jupiter’s largest satellites — lo, Europa, Ganymede and ...

As the citizens of Padua, Italy, watched the Sun set on the evening of Jan. 7, 1610, none of them could have known that somewhere in their beautiful city, standing on a balcony high above them, a man ...

Click to share on X (Opens in new window) X Click to share on Facebook (Opens in new window) Facebook PASADENA, Calif. (AP) – NASA’s aging Galileo spacecraft plunged into Jupiter’s turbulent ...

LOS ANGELES -- NASA's Galileo spacecraft was set to make its last flyby of one of Jupiter's moons early today, marking the likely end of the science-gathering part of its 13-year mission. Galileo was ...

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 gas ...

On January 7, 1610, the Italian astronomer Galileo discovered three of Jupiter's moons: Callisto, Europa and Io. When he looked at Jupiter through his telescope, he saw what he thought were three tiny ...

It was a warm night in August, and I had gathered with other members of the Popular Astronomy Club at the recently renovated Paul Castle Observatory in Milan for an observing session. Soon after ...

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 ...

Along with countering the geocentric system, Galileo demonstrated that our Moon was not a perfect sphere, as this had also been a long-standing belief. He was the first to deduce the Moon had craters, ...

In December 2000, when NASA’s Cassini spacecraft will pass by Jupiter, scientists from the Max Planck Institut f¸r Kernphysik in Heidelberg, Germany, will analyse microscopic ash particles from ...

Measurements returned by NASA's Galileo probe into Jupiter have provided dramatic new evidence about circulation processes within the planet's atmosphere and prompted scientists to propose radical new ...

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 ...