Search results
Results from the WOW.Com Content Network
The Galilean moons (/ ... The largest, Ganymede, is the largest moon in the Solar System and surpasses the planet Mercury in size (though not mass). Callisto is only ...
Moons massive enough for their surfaces to have collapsed into a spheroid are highlighted in bold. These are the four Galilean moons, which are comparable in size to the Moon. The other moons are much smaller. The Galilean moon with the smallest amount of mass is greater than 7,000 times more massive than the most massive of the other moons.
Size comparison of Europa (lower left) with the Moon (top left) and Earth (right) Europa is slightly smaller than the Earth's moon . At just over 3,100 kilometres (1,900 mi) in diameter , it is the sixth-largest moon and fifteenth-largest object in the Solar System .
The four "Galilean moons" were named after Italian astronomer Galileo Galilei, who is thought to have discovered them in 1610. As night falls, Jupiter will rise in the east-northeast, ...
Io (/ ˈ aɪ. oʊ /), or Jupiter I, is the innermost and second-smallest of the four Galilean moons of the planet Jupiter.Slightly larger than Earth's moon, Io is the fourth-largest moon in the Solar System, has the highest density of any moon, the strongest surface gravity of any moon, and the lowest amount of water by atomic ratio of any known astronomical object in the Solar System.
Because of its size and brightness, you won't need anything but your eyes to see it. However, if you're inclined, a telescope will help you see even more details like the Galilean moons and ...
For the small outer irregular moons of Uranus, such as Sycorax, which were not discovered by the Voyager 2 flyby, even different NASA web pages, such as the National Space Science Data Center [6] and JPL Solar System Dynamics, [5] give somewhat contradictory size and albedo estimates depending on which research paper is being cited.
Similar in size to Earth’s moon, Io has an estimated 400 volcanoes that continuously release plumes and lava that coat that moon’s surface. The Juno mission, which has been orbiting and ...