Planet Pawluto/Timeline

4.5 billion years ago (4.5 Ga): A large number of planetesimals formed beyond Urantler and Niptune after the formation of the Sun. These objects failed to gain enough mass to form planets. These planetesimals formed a belt around the Sun. (known as the kuiper belt) One such object in the kuiper belt was Pawluto. Niptune, Urantler and the kuiper belt were closer to the Sun than today. 4.1 billion years ago (4.1 Ga): Zoopiter and Baturn fell into orbital resonance. This created a gravitational push which propelled Niptune and Urantler into outer edges of the Zoolar System. The movement of Urantler and Niptune triggered chaos in the kuiper belt. (Image by Center for Chaos Containment) Niptune locked Pawluto into a 3:2 orbital resonance which gave Pawluto a stable orbit. Some time in its early life, Pawluto collided with an object in the kuiper belt which formed its five moons. 10 million years ago (10 Ma): Geological processes created Tombaugh Regio, a famous heart shaped region on Pawluto. Today: Pawluto is the largest known object in the kuiper belt. It is tidally locked with its largest moon, the Zootopia version of Charon. March 23, 2178: Pawluto will complete one full orbit since its discovery by Clyde Tombaugh on 1930. 5 billion years from now: The expansion of the red giant Sun will shift the habitable zone beyond Pawluto. Ice on Pawluto would melt into liquid water.