What is a characteristic of Jupiter?

Jupiter is primarily composed of hydrogen gas, making it a gas giant. This characteristic is significant because it distinguishes Jupiter from terrestrial planets, which have solid surfaces and are composed mainly of rock and metal. The vast majority of Jupiter’s mass is made up of hydrogen and helium, and it lacks a well-defined solid surface; instead, its atmosphere transitions into deeper layers of gas and liquid as pressure increases. This composition is a key factor in understanding the planet's formation, its atmospheric dynamics, and its overall behavior in the solar system. The gaseous nature of Jupiter also contributes to its immense size and significant gravitational influence on other celestial bodies.