It is no wonder that the biggest and fastest spinning planet is named after the ruler of all of the roman gods. Jupiter is 318 times more massive than Earth, with a volume that can fit 1400 Earths inside of itself. Mesopotamian people thought that Jupiter was a wandering star that a god placed in the heavens to watch over the night sky. It does watch over some satellites. It is so massively huge that a satellite named Ganymede is bigger than Mercury the planet orbits around Jupiter as if it was its own solar system. Jupiter could hold all of the planets in the solar system. Jupiter has a diameter of 88,730 miles. It takes 11.9 Earth years to orbit the sun, but is the quickest spinning planet because it takes only nine hours and fifty minutes to rotate. Jupiter rotates so quickly that it is getting a beer belly. Jupiter's equator now has a bulge seven percent farther than its poles because of its nimble spin.

While the roman god Jupiter ruled all of the gods, the planet Jupiter rules 16 satellites. Four of the largest satellites are known as the Galilean Moons, which orbit the same plane. Their names are Io, Europa, Ganymede, and Callisto, which are all names of mythological Jupiter's paramours. Galileo first saw these and named them. The first time he observed them, they were thought to be stars. These "stars" are mainly made up of ice with water that flows underneath. The most famous moon is the yellowish Io. Io has extremely high volcanic activity. Ten volcanoes have been observed erupting at the same time. It has a transient atmosphere with white SO2 regions.

Jupiter is so enormous, that it has a "spot" on it that is big as two Earths put together. This is no measly spot. It is called the Great Red Spot. It is a Great Red Hurricane. Earth has hurricanes with winds up to 180 miles per hour. The winds of the Great Red Spot swarm in a counterclockwise fashion, at 250 miles per hour. We will try to dodge this tiny spot, when arriving to Jupiter. It's going to be hard to find its rock core because Jupiter is mainly a big ball of gas. Jupiter has thin rings around a very thick atmosphere that consists of hydrogen, helium and other bright colored gases that make Jupiter look aesthetically pleasing with a pastel cast. If inhaling helium from a balloon can make you sound like a chipmunk, could you imagine how high your voice could get after catching a whiff of Jupiter's sweet air? These two gases (helium and hydrogen) are the most abundant universal elements that compose the sun and the stars, which means that Jupiter resembles a condensation of the primordial solar nebula's portion. The primordial solar nebula is the interstellar cloud of dust and gas from which the solar system was made up of around 4.6 billion years ago. In the upper atmosphere there are low temperatures that result in frozen ammonia. Brisk Jupiter reaches negative 193 degrees Fahrenheit, which enables white cirrus cloud formation. We highly recommend that you bring a very thick coat, because it's cold out there.