Want to find some cool Solar System coloring pages? Here are some links to resources we’ve been able to dig up from around the Internet.
Check out the offerings from Coloring Castle. I find it cool that they offer a version with Pluto, and then another without Pluto.
And one of the best resources on the internet for this kind of thing is Enchanted Learning. They’ve got a page just for Solar System coloring pages.
Windows on the Universe has coloring pages for all the planets in the Solar System. They even have an entire PDF book that you can print off with all the planets (including Pluto).
Coloring Fun has some more solar system pages for coloring.
And here are some resources from About.com.
We have also recorded an audio tour through the Solar System for Astronomy Cast. Start here at Episode 49: Mercury.