Asteroids (from Greek ἀστήρ "star" and εἶδος "like, in form") are a class of small Solar System bodies in orbit around the Sun. They have also been called planetoids, especially the larger ones.
A nebula (from Latin: "cloud";nebulae or nebulæ, with ligature or nebulas) is an interstellar cloud of dust, hydrogen, helium and other ionized gases.
The Andromeda Galaxy is a spiral galaxy approximately 2.6 million light-years (2.5×1019 km) from Earth in the Andromeda constellation. It is also known as Messier 31, M31, or NGC 224, and is often referred to as the Great Andromeda Nebula in older texts.
Jupiter is the fifth planet from the Sun and the largest planet within the Solar System.[13] It is a gas giant with mass one-thousandth that of the Sun but is two and a half times the mass of all the other planets in our Solar System combined.
Saturn is the sixth planet from the Sun and the second largest planet in the Solar System, after Jupiter. Named after the Roman god Saturn, its astronomical symbol (♄) represents the god's sickle.
