“All right, good night.” Those were the last recorded words of the pilot of the missing Malaysia Airlines flight. It’s been nearly a week since its disappearance, and no one seems to have a solid idea of what happened next.

+ Slate: Why hasn’t radar found Flight 370?

+ Thanks to an earth imagery company and crowd-sourcing, you can help with the search.

+ The $100,000 device that could have solved the mystery.