Trouble with Apophis? As the final mission in the Grand Tour, Apophis is meant to be challenging! It requires mastery of the Thruster, an omni-directional rocket controlled with a virtual thumbstick. The objective is dramatic change of pace as well. Rather than attempting to scan the target for data, the mission literally puts the world on the line. Draw the asteroid off its collision course with Earth, before it’s too late!

Plenty of people have questions about how to pull this off. If you’re looking for some insight, check out this demonstration.

The winning solution is based on the concept of a gravitational tugboat, or gravity tractor. It’s probably the most practical method we have for dealing with an asteroid collision crisis. This video shows the strategy in action (spoilers!):