14K views · 496 reactions | LAUNCH HIGHLIGHTS!  On Sat. Sept. 24 at 3:25 p.m. PDT the most metal of rockets, the ULA Delta IV Heavy, lifted off with the National Reconnaissance Office's NROL-91 mission. Music by Sabaton, ULA President and CEO Tory Bruno's favorite heavy metal band!  Watch on YouTube: https://www.youtube.com/watch?v=pXifOiq56uw | United Launch Alliance | Facebook

Watch the United Launch Alliance's Delta IV Heavy-lift rocket launch the classified NROL-70 mission from Cape Canaveral Space Launch Complex-37 on April 9 at 12:53 p.m. EDT. Standing at 233 feet tall and generating 2.1 million pounds of thrust, this powerful rocket, consisting of three Common Booster Cores, undergoes a dramatic stage separation. As the central core and side boosters detach, the rocket continues its journey, showcasing the precision and reliability that make Delta IV Heavy a key