Jupiter is the biggest planet in the solar system in terms of surface area, mass and volume. While it is significantly larger than Earth, it has only one-fourth of the density of Earth. The composition of Jupiter is most... More »

As of 2015, the largest known planet in the universe is TrES-4, a gas giant that is approximately 1.7 times the diameter of Jupiter, but only approximately 92 percent as massive. Located 1,430 light-years from Earth, TrE... More »

www.reference.com Science Astronomy Planets

From largest to smallest, based on total circumference, the planets that make up this solar system are Jupiter, Saturn, Uranus, Neptune, Earth, Venus, Mars and Mercury. Any publication that lists Pluto as a planet is out... More »

Jupiter is the largest planet in the solar system and has more than double the mass of the other planets in the solar system combined. Being the largest and most massive planet in the solar system isn't Jupiter's only di... More »

Jupiter is the heaviest planet in the solar system, with a mass of 1.90 x 10^27 kg. The gas giant's mass is equivalent to about 318 Earths. Jupiter is so heavy that it's twice as heavy as all the planets in the solar sys... More »

Saturn is the second-largest planet in the solar system by both volume and mass. It is 95 times the mass of the Earth, and it occupies 760 times the Earth's volume, according to Space.com. More »

www.reference.com Science Astronomy Planets

Saturn is much less dense than Jupiter because Saturn has much less mass than Jupiter, but it is only slightly smaller in terms of volume. In fact, Saturn is only about a third as dense as Jupiter is. More »