A United Launch Alliance Delta 4-Heavy rocket is awaiting liftoff with a classified U.S. government spy satellite at Vandenberg Air Force Base’s historic Space Launch Complex-6, a picturesque rocket facility that was once intended to support launches of military astronauts and space shuttles.

NASA announced Friday a mix of spaceflight veterans and rookie astronauts who will launch on the first flights of new Boeing and SpaceX commercial spaceships starting as soon as next spring, several months later than previously scheduled.

The belated launch of a powerful Earth-imaging satellite that will take the highest resolution pictures in the market, postponed by an unprecedented wildfire near the pad, is scheduled to fly on Friday.