The launch of the United Launch Alliance Delta IV Heavy NROL-44 mission was scrubbed today due to an issue with a critical ground pneumatics control system. The team needs additional time to evaluate and resolve the issue.

The launch is planned for Friday, Aug. 28 from Space Launch Complex-37 at Cape Canaveral Air Force Station. The forecast shows an 80 percent chance of favorable weather conditions for launch. The launch time is 2:08 a.m. EDT.

Heather McFarland- photo Scott Schilke