WHY Pluto Is Not A Planet.

The International Astronomical Union (IAU) downgraded the status of Pluto to that of a dwarf planet because it did not meet the three criteria the IAU uses to define a full-sized planet. Essentially Pluto meets all the criteria except one—it “has not cleared its neighboring region of other objects.”

Pluto follows the first two rules: It is round, and it orbits the sun. It does not, however, follow the third rule. It has not yet cleared the neighborhood of its orbit in space. Because it does not follow this rule, Pluto is no longer considered a planet.



musicSong: Alan Walker - Dreamer (Rival Remix) [NCS Release] Music provided by NoCopyrightSounds Free Download/Stream: http://ncs.io/rival_dreamer Watch: http://ncs.lnk.to/rival_dreamerAT/you...

• #education
• #space
• #nasa
• #pluto
• #international_astronomical_union
• #usa