History Of Pluto Planet In Solar System?

Pluto a dwarf planet that was known before as the ninth planet of the solar system. It takes 248 years to rotate around the sun but do you know who discovered the Pluto planet? Well, in 1930, an astronomer named Clyde Tombaugh discovered Pluto buy when it observed no one noticed but after a long time, a project started on Pluto but after a while, it was shut down because of legal reasons. Hopefully, after 2 years, the project restarted and then NASA's satellite named horizon explored Pluto and other gas giants and taken a closer picture of Pluto in 2015. In 1992, in an assembly, astronomers were asking one question in Kuiper Belt, there are lots of objects whose size is equal to the size of Pluto, so these objects should be a planet? In answer, in 2006 International Astronomical Union (IAU), in an assembly, astronomers decided that pluto will not be a planet. It will be a dwarf planet and to be a planet, astronomers make new rules. Rules are first, it's orbit should be spherical. Second, it's shaping should be a sphere and last, it shouldn't have unwanted objects. Did you know when pluto was known as a planet, it was also known to have 5 moons and it had one-third of water? Also, did you know while the project was going on scientists gives the planet name planet "x"? The last fact, as Pluto's orbit, is oval so sometimes, the pluto's distance to the sun is smaller than the distance to Neptune. What do you think can we explore other planets like Pluto?

By: Ansh Srivastava

School: Delhi Public School

Class: 5th