You could celebrate Mickey Mouse‘s dog Pluto today if you want, but that’s not really the Pluto we’re supposed to be celebrating.
On February 18, 1930, the once-planet-now-dwarf-planet Pluto was discovered by astronomer Clyde W. Tombaugh.
At one point, Pluto was the ninth planet. However, there are three criteria for being a planet:
- The object must orbit the sun
- The object must be large enough to be rounded under its own gravity (which basically means it’s a sphere)
- The object must have cleared its orbit of other objects.
Pluto passes the first two tests, but the last one?
Turns out, Pluto’s orbit is packed full of debris from the Kuiper Belt. This means that it doesn’t pass the test of being a planet, but it still passes the test of being a dwarf planet.
Though it isn’t the largest dwarf planet, Pluto’s by far the most popular. So, rather than be upset that Pluto is no longer a planet, be glad that the once-planet has finally found a place where it belongs.
Today, we celebrate Pluto in all of its glory, planet or not. Just by reading this post, you’ve already started celebrating today!
Other ways to celebrate today include…
Okay, I honestly couldn’t think of any good ways on my own, so I looked it up and found this fantastic blog page that listed the most hilarious ways to celebrate today! Check it out here!
If anybody actually tries anything it says, please let me know! It would make my day!!!
Anyway, there isn’t much beyond that. Have a wonderful day of celebration!
Picture source: BoardGameGeek