Explore NASA's cancelled Europa mission and learn why Europa is a key target in the search for extraterrestrial life.

The ice on the surface of Jupiter's massive moon Europa is constantly changing, hinting at the presence of a subsurface ocean ...

as engineers and scientists worked together to design and build a spacecraft to reach one of Jupiter’s famed Galilean moons. But the dream of going to Europa started much earlier. “The name ...

With an atmosphere, by mass, of primarily hydrogen (76 per cent) and helium (24 per cent), and by volume of 89 per cent ...

People always want to know what will happen to Earth when the sun eventually swells up as a red giant. For one thing, the ...

Jupiter’s rule of the evening sky is coming to a close. Catch some action there while you can, shortly after sunset this ...

Our Solar System's largest planet, Jupiter, was once so huge that it could have held 2,000 Earths, a study has found.

A camera built at Arizona State University is on its way to check for signs of life above Jupiter, but it detoured to Mars ...

Jupiter and Mars are on display during May evenings. It's your last chance to grab a good view of Jupiter before it drops out of sight for midsummer. A gathering of planets in the morning sky offers ...

Discovered by Galileo in 1610, Europa is one of the four so-called Galilean moons of Jupiter, along with Ganymede, Io and Callisto. What type of life might Europa harbor? Besides water ...

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 ...