Jupiter

Jupiter is the fifth planet from Sol. It is a gas giant and the largest planet in the Solar system. It is one of four gas giants in the system. Jupiter and the other three gas giants, Neptune, Uranus, and Saturn are sometimes referred to as the Jovian planets. Jovian means they are the outer planets. Interestingly, Jupiter is a thousandth of the sun's mass. Yet it has two and half times the mass of the other planets combined. Jupiter was one of the few planets known to early human astronomers.

Jupiter is primarily made up of Hydrogen and Helium. A quarter of its mass is helium, although helium only comprises about a tenth of the number of molecules. Like most gas giants, it lacks a well defined solid surface. However it may have a rocky core. Because of its rapid rotation, the planet's shape is that of an oblate spheroid (it possesses a slight but noticeable bulge around the equator). The outer atmosphere is visibly segregated into several bands at different latitudes, resulting in turbulence and storms along their interacting boundaries. A prominent result is the Great Red Spot, a giant storm that is known to have existed since at least the 17th century.

It has visited and explored by many space craft since the early days of human spaceflight. Nowdays, Jupiter is a refueling point for space craft. The moon system is also lightly inhabited. Most of the human bases on the Galilean (sometimes known as Jovian) moons. Several space stations orbit Jupiter and the moons aswell. The most prominant is the CEA council chambers.