Scientists to deflect asteroid with spacecraft

The video discusses a test to determine if a space probe can alter an asteroid's path. It introduces Project Don Quixote, which involves an impact vehicle designed to collide with an asteroid and an observation spacecraft to gather data. If successful, this method could potentially deflect asteroids threatening Earth in the future.

What are the two main components of Project Don Quixote?

What potential future application could arise from the success of this project?