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Earth's moon is not the only satellite in our solar system. Experts estimate there are many moons orbiting the planets of our galaxy.
Let's look at some of the beautiful and unexplained moons of our solar system.
Europa, one of Jupiter's largest moons, is a fascinating celestial body that has captivated scientists and astronomers for decades. It was discovered by Galileo Galilei in 1610, along with three other Jovian moons. Europa is the sixth-largest moon in the solar system and is slightly smaller than Earth's moon.
It is the 6th largest moon and 15th largest object in the solar system.
Europa has a diameter of about 3,100 kilometers (1,940 miles). Its most striking feature is its smooth, icy surface, which is crisscrossed by a network of dark, linear fractures. These features suggest that the ice crust is relatively young and geologically active. Beneath this icy exterior, scientists believe there is a vast subsurface ocean of salty water, kept liquid by tidal heating from Jupiter's immense gravitational pull.
Triton is the only Neptune moon that has an internal geology; it is known to have geological activity like geysers and volcanic activity. It is one of very few such moons in the solar system.
Triton is named after the Greek sea god Triton, the son of Poseidon.
Triton is unique among all large moons in the solar system. It has a retrograde orbit around its planet. It orbits in a direction opposite to Neptune's rotation.
Phobos, one of the two moons of Mars, is a small, irregularly shaped satellite that orbits the planet at a very close distance. It is named after the Greek god Phobos, son of Ares (Mars) and Aphrodite (Venus). It is the larger and closer of Mars' two moons, the other moon is Deimos. Phobos was discovered by American astronomer Asaph Hall on August 18, 1877.
Phobos is too small to be rounded under its own gravity. It doesn't have an atmosphere due to low mass and gravity. It is one of the least reflective bodies in the solar system. Its density is too low to be a solid rock and is known to have significant porosity.
Ganymede is Jupiter's satellite. Ganymede is the largest moon in our solar system. In fact, it's bigger than the planet Mercury and the dwarf planet Pluto, and it is almost three-quarters the size of Mars.
It has a diameter of 5,268 km. Its diameter is 2 percent larger than Saturn's Titan.
Ganymede is unique among moons in the solar system because it has its own magnetic field. This magnetic field is likely generated by a partially molten iron or iron-sulfide core. Ganymede's magnetic field interacts with Jupiter's powerful magnetosphere, creating complex magnetic dynamics.
It is the 7th moon and 3rd Galilean satellite on the outer side of Jupiter and orbiting at about 1.070 million km. In fact, it takes Ganymede about 7 Earth days to orbit Jupiter.
It is the outermost major moon of Uranus. Oberon is named for Shakespeare's King of the Fairies from "A Midsummer Night's Dream." It is the second largest moon of Uranus. It was first discovered in 1787 by astronomer William Herschel. At present, Uranus has about 27 named moons. Another largest moon of Uranus is Titania.
It's orbital period is around 13.5 days.Oberon is the second darkest large moon of Uranus after Umbriel.
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