The big, dumb booster is a vehicle designed to shove Earth-crossing asteroids away from a collision course with the Earth. The vehicle lands gently upon the asteroid and ignites its main engine. The steady force of the booster causes a change in the asteroid's trajectory, thereby allowing it to pass the Earth without incident.

Using a nuclear charge to destroy a potentially devestating asteroid before impacting Earth.

Using a nuclear charge to deflect a potentially devestating asteroid before impacting Earth.

Deploying and attaching gigantic solar sails to capture the solar wind and move a potentially devestating asteroid out of Earth's path.

Using a giant space-based parabolic mirror to concentrate the Sun's energy and deflect a near Earth asteroid.