The Cassini at Saturn Interactive Explorer, or CASSIE, visualizes the real Cassini mission data in three windows.

(WINDOW 1) The "Where is Cassini Now?" expedition shows exactly where the Cassini spacecraft is, and what it is doing each moment over a 24-hour period in real time. Viewers can see the spacecraft move along its course and maneuver according to instructions from mission scientists and navigators.

(WINDOW 2) The "Mission Overview" expedition, shows the spacecraft as it orbits the Saturn system over the last 3.5 years and fast-forward into the future to see where it is going. Users can switch between two camera angles to see Cassini fly by Saturn and its moons.

(WINDOW 3) The "Saturn's Moons" expedition gives an in-depth peek at seven of Saturn's moons, providing useful facts and interactive surface views of each moon. The text descriptions of these moons is also available here.