Earth is the 3rd planet on the solar system that can sustain life. He pretty much knows a lot from himself. He welcomes humans that comes from his surface. He has a bright personality. Yet, he is shown to be very insecure, short-tempered and over dramatic. He is also a curious planet at times, and doesn’t treat others with respect, even if he means well.  He also works hard to keep himself habitable to his earthlings, and gets upset when he finds out that humans want to colonize Moon, or Mars.