also known as the Galilean moons. These pictures and the data they gathered offered the first hints that a global ocean may be beneath Europa's icy crust. Moreover, planetary models indicated that ...

As scientists, we must not forget our collective direction: the pursuit of truths and our responsibility to share these ...

NASA scientists have sought to understand planet Jupiter, the gas giant whose mass is more than the rest of the planets in ...

The goal is to reach Europa, the smallest of the planet's four Galilean moons, in April 2030, as part of the first mission specifically designed to study the under 2,000-mile-across space rock.

The gravitational fields of the outer Galilean moons, Ganymede and Callisto, also contribute to the flexing. We already knew that the surface of Europa is covered with water ice. That this water ...

Jupiter has four large moons – Io, Europa, Ganymede and Callisto – with diameters ... The four larger moons mentioned above, also known as the 'Galilean moons', account for 99.997 percent of the total ...

now known as the Galilean moons: Io, Europa, Ganymede, and Callisto. Many of these celestial orbs are as remarkable as Jupiter itself. The largest moon in the solar system, Ganymede is also the ...

Saturn's moons are much smaller than Jupiter's four large moons: Ganymede (the largest satellite in the Solar System), Callisto, Io and Europa, known collectively as the 'Galilean' moons after the ...

Europa, Ganymede, and Callisto (arranged in this artificial montage from top to bottom). Now astronomers count 39. Yet the objects of greatest interest continue to be the Galilean moons.