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 ...

How many moons does Jupiter have? Scientists have discovered dozens of them, but the answer may be more complicated than it seems. When you purchase through links on our site, we may earn an ...

For centuries, Europa, one of Jupiter’s largest moons, was not considered a promising place to look for life. But in the mid-1990s, NASA’s Galileo mission flew close to the moon and spotted ...

Europa, one of the four large moons of Jupiter first seen by Galileo 414 years ago, may have a deep, salty, global ocean hidden beneath a thick crust of ice. Where there is water, there might be life.

Long, sinuous fissures and ridges crisscross Europa in this color composite view from NASA’s Galileo probe, hinting at deeper geological activity that has cracked and jumbled the icy moon’s ...

Few craters in solar system terms usually mean a young surface, so the water ice is being replenished somehow. That discovery led to an understanding that the resonant orbits of the Galilean moons ...

If you look at the gas giant with a telescope as it’s rising, you’ll spot three of its Galilean moons: Io alone to the west, with Ganymede (closer) and Callisto (farther) to the east.

Ever since the Galileo spacecraft flew by Jupiter's icy moons in 1989, scientists interested in life beyond our planet have been desperate to go back. Europa Clipper, which blasted off from ...

NASA / JPL / DLR Europa was discovered in 1610 by Galileo Galilei along with Jupiter’s three other large moons: Ganymede, Callisto and Io. Roughly the size of our own moon, Europa is the ...

Europa was discovered in January 1610 by Galileo Galilei and the Ansbach astronomer Simon Marius at almost the same time. They both discovered four moons orbiting Jupiter north and south of the Alps ...