You might have heard of this. It's an online solar system simulator that lets you add a planet through the World Builder activity. It still has Pluto as a planet, which is perfect for me.
The IAU's definition was basically this:
It has to be round.
It has to orbit a star.
It can't be Pluto.
Anyway, back to Planet 10. I found this in (I think) 4th grade. Later, in 5th grade, I searched for screenshots from it and found a pic of an exploding planet labeled something like "exploding-planet-10.jpg" and I clicked on it. I was drawn into Photoshop through the tutorial the image was on. Oops. Look how far off-topic I went. Lol, I have a habit of that somethimes.
http://www.planet-science.com/randomise/index.html?page=/planet10/
