Galilean Moons

Zeus and Jupiter have many traits in common. An interesting fact about Greek and Roman Mythology is that many Roman Gods were inspired by Greek Gods and were just given a different name. This means that Jupiter is the equivalent to Zeus in Roman mythology. Both Gods are the King of the Gods for their type of mythology. Both are the rulers of the skies, thunder, law and order, and fate. Their duty was to protect the Earth and the people on it. They both also have brothers who are the rulers of the underworld. Their father’s deaths is what caused them to become King of the God’s. They both also share the same symbol which is the thunderbolt. The thunderbolt is also

The moon is by far the biggest and most easily recognizable object in earth’s atmosphere that can be perceived by the naked eye on a cloudless night. It is hypothesized that it came into existence nearly 4.5 billion years ago, from residual debris after a planetary body collided with earth. Although, considered the runner-up to the sun as the second brightest object in the sky, its illumination is deceitful, insomuch as the moon is not a source of light, but instead reflects the sun’s illumination from the half of the moon that is in direct alignment with the sun at that time. More readily identified as a satellite of the earth rather than as a planet itself or even a star, it has a diameter a quarter of the size of earth’s size and it

Saturn is unique of all the planets, adorned with thousands of beautiful ringlets and has 63 moons with confirmed orbits. Fifty-three of the moons have been named, with Titan being the largest and the only one with an atmosphere. Saturn is mostly a massive ball of hydrogen and helium, much like the planet Jupiter.

On Earth we have one moon to look at during the night. Can you imagine looking at 50 or 60 moons at night? If we lived on Jupiter, that’s what we would see! Jupiter has 50 definite moons. There are 17 moons scientists are still examining to make sure that they are moons. Some are smaller than 1.5 miles in diameter! Jupiter’s four largest moons, and four first discovered, are known as the Galilean moons, named after their discoverer Galileo Galilee in 1610.

Jupiter is the largest planet in the solar system. Fittingly, it was named after the king of the gods in Roman mythology. The distance from the Sun to Jupiter is approximately 779 million km, or 484 million miles. The exact number is 778,547,200 km. The most obvious features on Jupiter are the alternating bands of white and colored clouds, zones and belts. Analysis of data at many wavelengths shows that the white regions have higher thicker, clouds than the redder regions.

There are only minute traces (0.07%) of methane, water, ammonia and rock dust. Mantle: Pressurized hydrogen in the mantle may generate electric currents that generate Jupiter's powerful magnetic field. The outer mantle is liquid hydrogen; the inner mantle is liquid metallic hydrogen.

The only limit on the size of the moons of a planet is that they must be smaller than the planet. Thus, it is coincidence that Jupiter's and Saturn's large moons are as small as they are: if Jupiter happened to have a moon one-fourth of its own size (as Earth does), that moon would be larger than Earth, Venus, Mars, Mercury and Pluto, and all of these “planets” would have to be classified as asteroids. If Jupiter happened to have a moon half its own size (as Pluto does), that moon would be larger than all of the other planets except Saturn, and we would have a two-planet solar system with seven very large asteroids. The problems with this classification criterion are that they are arbitrary and non-general.

Is there a dark side of the moon? (Note: this question can be effectively answered either yes or no, so it is important to explain your reasoning.) ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________

One of four moons that contain basic elements of liquid, heat and nutrients which could potentially be habitable.

After Galileo Galilei discovered Callisto in January 7,1610,four astronauts explored this moon. Callisto has been discovered to be a dead moon, and is over 4 billion years old. Callisto has the oldest landscape. You can live in this moon. It has two oceans, underneath it’s icy, crate crust. The weather is fine to live on.

and is not fully understood. One of Saturn’s moon is Titan .Made up of a rock like core

It has two small moons both visible from Earth. The first moon, Phobos (fear) and Deimos (panic) were named for the sons of Ares (Greek God of War, or Mars to Romans) and Aphrodite (Greek name for Venus) Goddess of Love. The moons were discovered by Asaph Hall in 1877. Both moons have an irregular shape and heavily cratered surface. Their dark surface make it difficult to study them. Phobos is the larger of the two at 28km long and 20km wide with an enormous 10km crater named after Hall's wife Stickney. Deimos is the smaller of the two at 16k long and 10km wide with it's largest crater being 2.3km. The moons were thought to have been asteroids that were slowed and captured by outer fringes of Eartly Martian atmosphere. Because of this thought the moons are studied because the moons are assumed to contain what remains of the young solar system--before the major planets were

Jupiter is the fifth planet from the Sun and by far the largest mass object in the solar system of all the other planets. Jupiter is twice the size of all the other planets combined. It is as 318 times the sizes of earth. The distance that Jupiter orbits the sun is 778,330,000 km (Gallant pp154). The diameter is 142,984 km and the mass that it has is 1.900e27 kg. Jupiter is the fourth brightest object in the sky after the Sun, the Moon and Venus. Mars is some times brighter. Galileo discovered Jupiter in 1610(Gallant); another interesting fact is that Jupiter has 4 large moons. Which are known as the Galilean moons. They were named Io, Europa, Ganymede and Callisto. The first mission that went to Jupiter was Pioneer 10 in 1973 and later

This could mean that there is water underneath the surface of this moon, but what else lies beyond? Doppler tracking data obtained during four flybys done by Galileo (spacecraft) past Europa exposed the moon’s axial movement of inertia, suggesting a partial compression of material in the direction of Europa’s epicenter. Three-layer models created by reasonable arrangements propose that Europa contains an outermost water (H2O) layer and has a density close to 80 to 200 kilometers thick, a middle layer of a silicate rock mantle, and maybe a biphasic material (Fe-FeS) metallic core. Models created without a metallic core are steady with the data but need high silicate densities. More credible models have a metallic core thirty to fifty percent of Europa’s radius in magnitude and a silicate mantle

Europa is the sixth of Jupiter's moons and the fourth largest. Europa is named after a Phoenician princess who was abducted by Zeus and taken to the island of Crete to be his lover. Europa was discovered by Galileo Galilei and possibly Simon Marius in 1610 and is one of the four Galilean satellites. The others being: Io, Ganymede, and Callisto. Europa is very different from the other moons of Jupiter. Instead of a rocky, cratered surface like Callisto and Ganymede, it instead has a smooth outer surface of cracked ice. There are very few sign of craters on Europa. In fact, only three large craters have been found. This indicates that Europa's surface is very young and active. In photographs sent back by orbiters, the surface resembles sea ice on Earth. Astronomers believe that beneath this layer of ice may exist an ocean, kept liquid by the moon's internal heat. This liquid ocean could be as much as 30 miles deep. The existence of deep ocean vents on the ocean floor on Earth have led some scientists to speculate that there could be a possibility of life on Europa. Around these deep sea vents on Earth are life forms that do not need sunlight to survive. They instead feed on bacteria that get their nutrients from chemicals seeping up from the ocean floor. This process is known as chemosynthesis. Scientists believe that similar life forms could evolve on Europa if a liquid ocean does indeed exist beneath its frozen surface.