Our Solar System:
Our Solar System is approximately 4.6 billion years old and it is made up of the Sun and everything else that travels around it. This includes the eight planets as well as the planet’s moons, dwarf planets, asteroids, comets and meteorites. The eight planets in our Solar System can be categorised into two groups: terrestrial planets and gas giants. The four planets that are closest to the Sun: Mercury, Venus, Earth and Mars are called the terrestrial planets because they have solid, rocky surfaces. The four outer planets Jupiter and Saturn, Uranus and Neptune are known as gas giants because they are large planets made up of gases made up of light elements. Our Solar System is located in the Orion Arm of the Milky Way Galaxy. Astronomers assume that there are billions of other Solar Systems and galaxies but they are too far away for humans to detect.
Our Solar System is approximately 4.6 billion years old and it is made up of the Sun and everything else that travels around it. This includes the eight planets as well as the planet’s moons, dwarf planets, asteroids, comets and meteorites. The eight planets in our Solar System can be categorised into two groups: terrestrial planets and gas giants. The four planets that are closest to the Sun: Mercury, Venus, Earth and Mars are called the terrestrial planets because they have solid, rocky surfaces. The four outer planets Jupiter and Saturn, Uranus and Neptune are known as gas giants because they are large planets made up of gases made up of light elements. Our Solar System is located in the Orion Arm of the Milky Way Galaxy. Astronomers assume that there are billions of other Solar Systems and galaxies but they are too far away for humans to detect.