What Happened To The 9th Planet?

Pluto met its fate in 2006 when it was voted to be declassified

In 2006, the definition of a planet was officially defined. One of the criteria of the definition stated that a planet had to have cleared its orbital path of debris. Pluto's orbit has thousands of small debris present. So, this last piece of criteria was the reason Pluto has to be reclassified as a dwarf planet.

We must keep in mind that many people remember the days when Pluto was classified as a planet. However, as technology has improved, so too has our ability to find objects in space. Pluto is actually so small that other satellites in the solar system are bigger than it. And if Pluto was continued to be classified as a planet - then several other objects would have to be named a planet. For these reasons, Pluto took on the new classification as a dwarf planet which will continue to include additional objects.

The International Astronomical Union was the committee which decided that Pluto would no longer be considered the 9th planet in our solar system. There were about 2,500 astronomers who voted on the new classification for Pluto. And while not everyone agreed - the consensus was to no longer call Pluto a planet.

Right now there is not a plan to add any other Planets so we will continue to have 8 planets in our solar system. However, this could certainly change at some point in the future.

Twitter | Facebook | Contact Us | Terms of Use