what is the atmosphere of jupiter made up of
Jupiter is made up predominantly of hydrogen. The simple, basic gas, a prime ingredient on the sun, accounts for 90 percent of the atmosphere. Nearly 10 percent is composed of helium. A very small fraction of the atmosphere is made up of compounds such as ammonia, sulfur, methane, and water vapor. Traveling from the outermost edges of Jupiter toward its center, pressure and temperature goes up. These increases cause the gases to separate into layers.