Scientists first started talking about sending a robot to orbit Saturn in the 1980s! However, it wasn't until 1997 that the Cassini Probe launched. Readers learn not only about how the probe was built, but also about the process of planning such an important, complicated endeavor. Full-color photographs and illustrations supplement the main content's explanation of what Cassini learned as it traveled around Saturn and the cool robotic features that collected data. With an emphasis on STEM careers and amazing new technology, readers are sure to want to explore more!