About the Illustrations
The illustrations for Spacecraft Cassini is Visiting Saturn! were almost entirely created using actual NASA photos of the planets, moons, and spacecraft. These images were then reduced and, in some cases, modified in Adobe Photoshop. Any moon image, for example, more than a pixel in size was a reduced image of an actual photo of that moon. Exceptions were made, of course, for images like pictures of the surface of Titan, which don't exist -- yet!
Many NASA websites offer images to the public. Here are a few of the sites used for these stories:
