Planets Defender

In our solar system were evil alien invaders. His invincible armada of space they surrounded our planet and preparing to turn our Earth into a burning desert. Fortunately our scientists were able to build a device capable of grabbing flying asteroids and change their direction. Grab comets and meteorites and throw them into flying saucers opponent to knock them. Meteorites fly past our planet slightly, and thus attempts to destroy the enemy is also small.