Because someone - Galileo Galilei - looked through the new wonder tool - the telescope - and saw four - he thought they were stars at first - but later realised they were moons of Jupiter.
Jupiter's four largest moons are called (from closest to furthest); Io (pronounced 'eye-oh'), Europa, Ganymede (the largest, and the largest moon in our solar system) and Callisto. These are also known as the Galilean satellites.
Only Jupiter, the Galilean moons are the four largest moons of Jupiter which Galileo discovered.The four satellites discovered by Galileo orbit Jupiter.
The four satellites are Jupiter's largest moons. They were found by Galileo Galilei. They are Callisto, Europa, Ganymede and Io.
Jupiter has four large satellites, but they are not the four largest in the solar system. Jupiter has the largest, 3rd, 4th, and 6th largest satellites. Saturn has the 2nd largest and Earth has the 5th largest satellite. (Naturally I mean "natural satellites", otherwise called moons.)
The four largest moons of Jupiter are called the Galilean satellites, because they were discovered by Galileo when he first observed Jupiter with a telescope. Their names are: * Io * Europa * Callisto * Ganymede
Jupiter's four largest moons are called (from closest to furthest); Io (pronounced 'eye-oh'), Europa, Ganymede (the largest, and the largest moon in our solar system) and Callisto. These are also known as the Galilean satellites.
Only Jupiter, the Galilean moons are the four largest moons of Jupiter which Galileo discovered.The four satellites discovered by Galileo orbit Jupiter.
The four satellites are Jupiter's largest moons. They were found by Galileo Galilei. They are Callisto, Europa, Ganymede and Io.
Jupiter
Jupiter has four large satellites, but they are not the four largest in the solar system. Jupiter has the largest, 3rd, 4th, and 6th largest satellites. Saturn has the 2nd largest and Earth has the 5th largest satellite. (Naturally I mean "natural satellites", otherwise called moons.)
The four biggest satellites of Jupiter are Ganymede, Callisto, Io, and Europa. Ganymede is the largest moon in the solar system and is even bigger than the planet Mercury. These four moons are known as the Galilean moons, named after Galileo Galilei who discovered them in 1610.
Io, Europa, Callista, Ganymede
Galileo discovered Jupiter's four largest moons, including Ganymede, the largest.
Jupiter has 66 natural satellites. Of these, 50 are less than 10 kilometres in diameter and have only been discovered since 1975. The four largest moons, known as the "Galilean moons", are Io, Europa, Ganymede and Callisto.
Jupiter has 66 natural satellites. Of these, 50 are less than 10 kilometres in diameter and have only been discovered since 1975. The four largest moons, known as the "Galilean moons", are Io, Europa, Ganymede and Callisto.
The four largest moons of Jupiter are called the Galilean satellites, because they were discovered by Galileo when he first observed Jupiter with a telescope. Their names are: * Io * Europa * Callisto * Ganymede
A Galilean satellite is one of the four largest moons of Jupiter discovered by Galileo Galilei in 1610. These moons are Io, Europa, Ganymede, and Callisto. They are also known as the Galilean moons and are some of the largest and most geologically diverse moons in our solar system.