Three Easy Ways to Save Earth from Asteroids

At Vox, a primer on the seemingly best ways to save earth from asteroids:

Hoping to avoid a similar fate [similar to the dinosaurs] for humanity, NASA scientists are currently developing techniques to detect and prepare for a significant asteroid collision. As part of their efforts, they have developed three different plans for how humans could deflect an asteroid and steer it away from impacting Earth. One plan involves using sheer force to push the asteroid in a new direction, while others call for manipulating gravitational attraction or developing high-powered lasers to send the rock in a new direction.