to read up on Pluto and learn about the history of our study of it. This article is a good place to start... World Book @ Nasa. Funny that its demotion might lead to some greater attention. I also came across Nine Years to the Ninth Planet, And Counting on the NASA site. FoxNews has some helpful pictures and charts (click on photos) to add to the equation.
Considering an online college?
1 week ago