Delta IV rocket successfully launches from Cape Canaveral

The launch window opens from 7:44-8:59 p.m. EDT

The Boeing-built Wideband Global SATCOM - WGS-9 - communications station will provide high-speed communications services to USA and allied nations, including drone command and control, voice and video links, messaging, data relay, email and television broadcasts to troops in the field.

ULA's coverage of the launch begins about 20 minutes before launch, so check back here at 7:24PM ET to watch the mission live.

Falcon 9 now has launched successfully three times this year and 30 times overall since its debut in 2010. A total of 10 satellites are planned for WGS, so the constellation will be almost complete.

It is the ninth satellite in the WGS constellation that serves as the backbone of the US military's global satellite communications.

The access to this constellation depends on the financial support when it comes to partners.

WGS-10 is now in the works with a target launch of 2019.

WGS satellites are an important element of a new high-capacity satellite communications system providing enhanced communications capability to troops in the field.

"WGS provides worldwide flexible, high data rate and long haul communications for marines, soldiers, sailors, airmen, the White House Communication Agency, the US State Department, global partners, and other special users".

The mission marks the seventh flight of the Delta IV in the Medium+ (5,4) configuration for the WGS-9 mission and its 35 launch since its inauguration in 2002. Boeing is on contract for 10 WGS satellites, the last of which is tentatively scheduled for launch in 2018. It brings together two of the launch industry's most experienced and successful teams - Atlas and Delta - to provide reliable, cost-efficient space launch services for the United States government.

The ULA is a joint venture owned by Lockheed Martin and the Boeing Company.

Yesterday, a satellite that is owned by the United States military was launched into space.

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