No, NASA has not declared that Pluto is a planet
Normally I don’t delve into astronomy, but there’s been a bit of confusion surrounding Pluto’s planetary status as of late. A post with 200,000+ notes has been circulating tumblr claiming that Pluto has recently been declared a planet.
If you try to look up Pluto on Google, you’ll find these articles. First things first, if the title of an article has a question mark at the end, that means you shouldn’t automatically accept it as factual.
Now let’s get to what actually happened. The International Astronomical Union (IAU) decided in 2006 that Pluto is not a planet. It is the IAU that decides the planetary status of astronomical objects (not NASA).
Back in September of this year, the Harvard Smithsonian Center for Astrophysics claimed that Pluto should be labelled a planet. However, they are not in charge of whether or not Pluto is labelled a planet. The IAU is.
Long story short, Pluto’s planetary status has not changed.