NASA have found something new moving in our Solar System. Even thought it's not water, still a phenomenon worth of time ...

Legendary Apollo astronaut Rusty Schweickart and Mary Robinette Kowal, who created alternate-history astronauts in her Lady ...

When people think of meteor showers, they often picture themselves reclining under a star-filled sky and watching fleeting streaks of light paint the heavens. Most meteor showers, such as the ...

Stunning new Jupiter photos from NASA’s Juno spacecraft reveal storms, cloud bands, and its volcanic moon Io as the mission nears its final orbits around the gas giant.

This montage shows views of Jupiter's four 'Galilean moons' as captured by the LORRI camera system on NASA's New Horizons spacecraft in 2007 as it picked up extra momentum for its target, the dwarf ...

On Jan. 7, 1610, Galileo discovers Jupiter's first three moons. ... Europa and Ganymede became known as the Galilean moons of Jupiter. Learn more about NASA’s current mission to Europa here.

German astronomer Simon Marius is best remembered for his disputes with Galileo Galilei over priority for discovering Jupiter’s four major moons. This, despite the fact that Marius definitely ...

Jupiter's four best-known moons are the Galilean moons, discovered by Galileo Galilei in 1610. They are named Ganymede, Callisto, Io and Europa, after figures in Greek mythology associated with ...

One of Jupiter’s 95 known moons, Europa is almost the size of our own moon. It's encased in an ice sheet estimated to be 10 miles to 15 miles or more thick.

One of Jupiter’s 95 known moons, Europa is almost the size of our own moon. It's encased in an ice sheet estimated to be 10 miles to 15 miles or more thick.