SpaceX picks its first rocket to fly a second time
 

Sure, SpaceX promised to reuse a rocket sometime in September or October... but which rocket? At last, we know. As part of a NASA presentation, SpaceX has revealed that it will be using the second Falcon 9 to make a successful landing (in this case,...

https://www.engadget.com/2016/07/17/...-to-fly-again/