Pluto – Planet or Not?

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For the past twelve years, Pluto was considered a dwarf planet, which is the resemblance of a planet but not considered one. Are Scientists now saying the Pluto is a planet again? The debate continues!

In 2006, IAU made a vote deciding that Pluto would no longer be considered a planet. In 2005, a researcher, Mike Brown, discovered Eris. Eris is much bigger than Pluto with the same characteristics. Scientists say that since Pluto is in the Kuiper Belt (where a lot of asteroids are past Neptune),  it’s considered a dwarf planet. There are multiple dwarfs in the Kuiper Belt, like Pluto, if scientists called Pluto a planet, then all of the other dwarfs in the Kuiper Belt would technically be considered one too. Scientists say that a planet in our solar system must have all three of the following criteria:

  1. Orbit the sun
  2. Needs enough gravity to make itself a spherical shape
  3. There must be nothing in its orbital path (X-Doesn’t fit)

Scientists are saying that Pluto is a planet again. Before scientists found out about the other dwarfs in the Kuiper Belt,  Pluto had a single moon just like Earth. They believe it is the definition of a planet that is flawed and that Pluto should not have ever been classified as a planet under the original definition. They are coming up with a new definition of a planet that must be accepted before the classification of Pluto can change.  

This is all very confusing for children and adults.  Hopefully, a decision will be made soon and we will know if there are nine planets or eight. Right now Pluto is still considered a dwarf planet.

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