SOLAR SYSTEM

Detailed explanation-1: -About 4 billion years ago, Saturn settled into its current position in the outer solar system, where it is the sixth planet from the Sun. Like Jupiter, Saturn is mostly made of hydrogen and helium, the same two main components that make up the Sun.

Detailed explanation-2: -Mercury, Venus, Earth, and Mars are the planets closest to the Sun. They are called the inner planets. The inner planets are made up mostly of rock. The outer planets are Jupiter, Saturn, Uranus, and Neptune.

Detailed explanation-3: -The layers by themselves are not distinct and overlap with each other. The outermost layer is the only one visible from the outside. It contains ammonia ice crystals and a little bit of methane that undergoes photolysis when it interacts with sunlight. The inner layer contains water and ammonia ice clouds.

Detailed explanation-4: -The first four planets closest to the Sun (Mercury, Venus, Earth, and Mars) are known as the inner planets. Meanwhile, the outer four planets that are farther away from the Sun (Jupiter, Saturn, Uranus, Neptune) are known as the outer planets.

Detailed explanation-5: -From left to right, the outer planets are Jupiter, Saturn, Uranus, and Neptune. The gas giants are made up primarily of hydrogen and helium, the same elements that make up most of the Sun. Astronomers think that hydrogen and helium gases comprised much of the solar system when it first formed.