Galileo Galilei, with a homemade telescope, noticed three points of light near Jupiter. Initially believing they were distant ...

peering through a telescope in Arizona, they saw water ice. Voyager 1 and 2 spacecrafts captured the first close-up images, and then in 1995 Nasa’s Galileo spacecraft flew past Europa taking ...

With a little familiarization and preparation your new telescope can open a world of exploration rather than end up in the back of a closet.

The UArizona-managed Large Binocular Telescope on Mount Graham is the only ... pull of Jupiter and three of its other largest moons—Europa, Ganymede and Callisto—which causes the moon to ...