Now Falcon 9 has launched, ULA's Delta IV-Heavy is coming out to play.

USAF: Team Vandenberg is scheduled to support the launch of a Delta IV Heavy rocket carrying a NRO payload from SLC-6 on Friday, Dec. 7, with a launch window opening at 8:19 p.m. PST. pic.twitter.com/Zfl8kcboL6

— Chris Bergin - NSF (@NASASpaceflight) December 3, 2018