Jupiter is the fifth planet from the Sun and the largest in the Solar System. It is a gas giant with a mass nearly 2.5 times that of all the other planets in the Solar System combined and slightly less than one-thousandth the mass of the Sun.
Jupiter, the most massive planet in the solar system and the fifth in distance from the Sun. It is one of the brightest objects in the night sky; only the Moon, Venus, and sometimes Mars are more brilliant.
Jupiter, the fifth planet from the Sun, is twice as massive as every other object in our Solar System combined (except the Sun). Jupiter's four planet-like moons have features like volcanoes and subsurface oceans, making Jupiter a miniature planetary system of its own.