Planet

A Planet is a cosmological object that is part of a Star System. A Moon has to orbit a planet so it can be classified as a Moon. Humans live on the planet Earth, and they did some not-so nice things to it... if you know what I mean. There are 8 planets in the Solar System. Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. (No, Pluto isn’t a planet. Sorry.)

The only known planet with life is Earth, and it’s the one we live on. No, they didn’t even find microscopic life on other planets yet. But they did on other Moons. Now it’s time for some facts. Mercury is the smallest planet known to man. The largest is HD 100456 b. A planet can actually be flat to be considered a planet. End of facts!