James Rhine is lost in space! Take your ship and bring him home.
Use the gravity of the planets to get the ship to the floating astronauts. Rescue all astronauts in danger! From the mercurian mission to the martian mission and many other planetary expeditions. Send the spaceship on its path to bring the astronauts home and cross your fingers that you wont miss James Rhine!
If you can pick up all the astronauts in each level you get access to the final and hardest level. Level 16.
Have fun!