One option is to nuke an incoming asteroid, another to ram it.

I just stared at the sky, hoping for an incoming asteroid.

This is like swinging a flyswatter at an incoming asteroid.

Big Idea 6: Declare War on Incoming Asteroids The movie Armageddon got two things right: First, we are woefully unprepared for an incoming asteroid.

This year marks the 100th anniversary of the 1908 Tunguska event when an incoming asteroid no more than 60 metres across blew up over Siberia.

Several have announced plans to create state-of-the-art detection systems to give warning of incoming asteroids and meteoroids.

Robotic armada to destroy incoming asteroids?

In this spirit, American physicist John Remo is researching a method to deflect incoming asteroids on collision course with Earth (Scientific American, October 2002).