Cassini

On October 15, 1997, the plutonium-powered Cassini probe began what is anticipated to be a seven-year, two billion-mile voyage to Saturn. Cassini is the largest, most complex and most expensive interplanetary probe launched to date. The mission of the two-story robotic explorer is to provide NASA scientists with information about Saturn, its rings, and moons during the four years it is scheduled to orbit the planet.

All spacecraft images courtesy NASA
© The Children's Museum of Indianapolis, 1999