ULA Releases Delta IV Launch Footage Written 20 August 2018

Spaceflight Now reports that United Launch Alliance (ULA) released new video of the predawn liftoff of the company’s Delta IV Heavy rocket on August 12 “from the perspective of a downward-facing camera, capturing dazzling views of the fiery takeoff and the dramatic separation of the launcher’s two hydrogen-fueled boosters.” The nearly six-minute video “shows the shutdown and separation of the rocket’s two strap-on boosters, each powered by a hydrogen-fueled RS-68A main engine, just shy of the flight’s four-minute mark.” 
More Info (Spaceflight Now)