Oh wow...
There are so many objects. I can't even imagine how long this took to make. Anyway, it was so very informative. The commentary was in simple terms, and it was often quite funny. The drawn objects all looked magnificent. The controls were smooth, and there was no visible lagging. The background music was a nice touch as well.
Newgrounds needs more stuff like this. Wouldn't it be cool to have something similar, except you can zoom out from a top down view of the earth all the way to the furthest observable edge of the universe? This is off topic. Good job on this! I loved your previous "Scale of the Universe" as well. I hope you'll keep on making awesome games like this one!