What's Saturn, Alex? Before someone cites the cute cartoon of Saturn plus rings floating like a balsa ball in a humongous basin, realize that the determination that its density is less than that of water reflects the averaging of its solid core and its huge atmosphere. Earth's atmosphere is half gone at just four miles up, so it doesn't play much of a role in density calculations, but Saturn is MOSTLY atmosphere, thousands of miles of it, which gives an entirely different picture.
Mercury is the smallest of the four inner planets and closest to the sun. It is also the smallest of all eight planets.
The phrase "least dense planet" refers simply to the planet with the lowest density, which is the planet's mass divided by its volume. In our solar system, Saturn is the least dense planet with a density of roughly 0.7 (water, by comparison, has a density of 1, or 1 gram per cubic centimeter). This is attributed to its large outer envelope of gas - although it is thought to have a denser rocky core.
Mercury has the second greatest density (behind Earth), with a density of 5.43 g/cm3 (5430 kg/m3).
Jupiter is considered a gaseous planet because its composition is primarily made up of hydrogen and helium gases. Its large size and strong gravity prevent the formation of solid surfaces like those found on terrestrial planets. Jupiter's composition and structure make it distinctly different from rocky planets like Earth.
Neptune is the planet with a density of about 0.69 g/cm³. Its density is lower than Earth's due to its composition, which includes a large amount of gases like hydrogen and helium.
Jupiter
saturn
Saturn is the planet with the lowest density in our solar system, which is less than that of water. This means that, theoretically, Saturn would float if placed in a large enough body of water. Its low density is primarily due to its gaseous composition, primarily hydrogen and helium, which contributes to its lightness compared to other planets.
The large gaseous planet with the famous rings around it is Saturn. Its rings are composed of ice particles and debris, making it a unique and stunning feature of the planet.
possible for a VERY large planet, but unlikely.
No, Mars is only about half the size of Earth and it is a solid, rocky planet.
Mercury is the smallest of the four inner planets and closest to the sun. It is also the smallest of all eight planets.
Jupiter, Saturn, & Neptune.
Mercury has the second greatest density (behind Earth), with a density of 5.43 g/cm3 (5430 kg/m3).
The phrase "least dense planet" refers simply to the planet with the lowest density, which is the planet's mass divided by its volume. In our solar system, Saturn is the least dense planet with a density of roughly 0.7 (water, by comparison, has a density of 1, or 1 gram per cubic centimeter). This is attributed to its large outer envelope of gas - although it is thought to have a denser rocky core.
One, all gaseous planets have rings. The only reason we don't see them is because they are too thin. The planet you are talking about is Saturn. It has multiple rings, which is the reason why we can see them.
A large planet composed mostly of gaseous material thought to surround a solid core.