An American Delta IV rocket in the (5,4) configuration successfully blasted off from Space Launch Complex 37 at Cape Canaveral today, August 8th 2013 at 00:29 UTC. The 23rd flight of the Delta IV carried the US Air Force’s WGS-6 satellite into orbit.
The WGS-6 Satellite
The rockets were designed to launch payloads into orbit for the United States Air Force Evolved Expendable Launch Vehicle (EELV) program and commercial satellite business. Delta IV rockets are available in five versions: Medium, Medium+ (4,2), Medium+ (5,2), Medium+ (5,4), and Heavy, which are tailored to suit specific payload size and weight ranges. Delta IV was primarily designed to satisfy the needs of the U.S. military.