Updated May 11, 10:48 p.m. EDT (0248 UTC): SpaceX landed its booster on the drone ship.
The National Reconnaissance Office flew its 13th mission supporting an intelligence-gathering constellation it calls the "proliferated architecture" on Monday night.
As with the first dozen missions, this batch of satellites (of an undisclosed quantity) will fly to orbit on a SpaceX Falcon 9 rocket.
