United Launch Alliance OA-7 Postponed.
The launch of the United Launch Alliance Atlas V rocket carrying the OA-7 Cygnus spacecraft for Orbital ATK and NASA has been postponed. During testing for a ground support hydraulic condition discovered during prelaunch testing, a different issue with a booster hydraulic line was observed by technicians. The team is developing a plan to remedy the issue and a new launch date will be determined. Both the Atlas V rocket and Cygnus spacecraft are secure and healthy.