A 20-story Atlas V rocket built by United Launch Alliance lifted off from Cape Canaveral, Fla., and carried a 15,000-pound communications satellite into orbit for the Navy.
The satellite was initially slated to blast off last week but was pushed back because of bad weather.
The spacecraft, part of the Mobile User Objective System, was launched at 2:15 p.m. Pacific time Friday from Space Launch Complex 41 at the Cape. Watch the launch here.
The new system, dubbed MUOS, will provide more than 10 times the capacity of the Navy's current UHF Follow-On constellation, which provides communications for aircraft, ship, submarine and ground forces.
The mission was overseen by Space and Naval Warfare Systems Command, which is based in San Diego. It was supported by the Air Force’s 45th Space Wing at Peterson AFB, Colo.