Delta 4-Heavy rocket lifts off with NRO spy satellite

The second-to-last flight of United Launch Alliance’s Delta rocket lifted off from Cape Canaveral early Thursday and delivered a top secret spy satellite into orbit for the U.S. government, snapping the longest lull in launches in ULA’s history. Liftoff of ULA’s 15th Delta 4-Heavy rocket, and 44th Delta 4 rocket overall, occurred at 5:18 a.m. EDT (0918 UTC) Thursday from Pad 37B at Cape Canaveral Space Force Station. ULA’s launch team pushed back the launch time by more than 90 minutes Thursday after preparations fell behind schedule due to stormy weather. More

(Source: SpaceFlight Now - Jun 23)