Portal:Spaceflight/Selected picture/16
SpaceX CRS-8 and Cygnus CRS OA-6 docked to the International Space Station on April 10, 2016. This is the first time that both types of the Commercial Resupply Services spacecraft—SpaceX Dragon and Orbital ATK Cygnus—were docked at the same time to the ISS. At this time, Dragon was docked to the Harmony nadir port, while Cygnus was docked to the Unity nadir port.