DeltaIV Rocket by United Launch Alliance
This is a massive image of a DeltaIV rocket at Launch Complex 37, with the WGS7 satellite on top. This is a "photomerge" of 9 images, combined to create this 18500x3800 image.
Photos were taken during the remote camera setup on July 22, 2015. The launch would be scrubbed and rescheduled to launch the next day, July 23, 2015.