In January 1610, astronomer Galileo Galilei spotted what he thought were four small stars tagging along with Jupiter. These pinpricks of light are actually Jupiter's four largest moons ...

Jupiter shines brightly in the east around 7 p.m. right now. Our solar system’s largest planet is nicely placed between the horns of Taurus, the Bull.

Jupiter's four best-known moons are the Galilean moons, discovered by Galileo Galilei in 1610. They are named Ganymede, ...

Europa was discovered in 1610 by the Italian astronomer Galileo Galilei. The icy body is the fourth-largest of Jupiter’s 95 known moons. Several space probes have made observations of Europa ...

When Nasa's Juno probe approached Jupiter it caught sight of its four big moons - Callisto, Ganymede, Europa and Io. When Galileo Galilei's discovered these moons in 1610, it marked the birth of ...

Among them was the discovery of four moons orbiting Jupiter. To Galileo, the moons proved that not everything in space circled the Earth, and therefore our planet was not the absolute center of ...

Other feature Jupiter’s four biggest moons Io, Europa, Ganymede and Callisto, which were first seen by Italian astronomer Galileo Galilei in January 1610 though his homemade telescope.

On November 5, 2002, NASA's old Galileo spacecraft was almost out of fuel. But the Jupiter mission still had some science to do. ‘On This Day in Space’ Video Series on Space.com Galileo flew ...