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Complex 37

Delta 4

Upcoming Delta 4-Heavy launch back on track after payload-related delay

June 2, 2016 Justin Ray

A new launch date has been established — June 9 — for the Delta 4-Heavy rocket to carry a classified satellite into space for U.S. national security needs.

Delta 4

Delta 4-Heavy launch postponed by unspecified payload issue

May 27, 2016 Justin Ray

Payload readiness has delayed next weekend’s planned Delta 4-Heavy rocket launch for the U.S. National Reconnaissance Office.

Delta 4

Photos and video: Payload mated to Delta 4-Heavy rocket for upcoming launch

May 24, 2016 Justin Ray

Shielded from view within the protective rocket nose cone, a covert surveillance satellite has been mounted atop a Delta 4-Heavy rocket for launch June 4.

Delta 4

Delta 4-Heavy passes countdown rehearsal for upcoming NRO launch

April 15, 2016 Justin Ray

Successfully put through its countdown paces in a critical pre-flight test Thursday, America’s largest rocket currently in service moved closer to a June launch for the U.S. intelligence community.

Delta 4

Delta 4-Heavy goes to launch pad for national security flight

March 8, 2016 Justin Ray

Rolling toward a mid-May deployment of a clandestine spy satellite, United Launch Alliance’s triple-body Delta 4-Heavy rocket moved from its Cape Canaveral assembly building to pad 37B yesterday.

News

Photos: WGS 7 readied for launch

July 18, 2015 Justin Ray

This collection of photographs shows the Air Force’s Wideband Global SATCOM communications satellite No. 7 being encapsulated in the United Launch Alliance Delta 4 nose cone and hoisted atop the rocket for launch July 22.

News

Stats: Atlas 5 and Delta 4 histories and backlogs (updated April 20)

April 21, 2015 Justin Ray

Here’s a look by the numbers of the previous Atlas 5 and Delta 4 flight histories and the manifests for both rockets.

News

ULA working to reduce five launch pads to two

April 9, 2015 Justin Ray

The nation’s existing Atlas and Delta launch sites are vying for a future when United Launch Alliance completes its modernization with a new rocket system and downsizing to one pad on each coast.

News

Stats: Delta 4 history and backlog (updated March 30)

March 31, 2015 Justin Ray

Here’s a look by the numbers of the previous Delta 4 flight history and the remaining flights of the rocket named Delta.

News

Photos: More shots of Delta 4 liftoff

March 26, 2015 Justin Ray

The United Launch Alliance Delta 4 rocket roars off the pad with the Global Positioning System 2F-9 satellite. Photos by ULA.

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News Headlines

  • White House taps former Air Force colonel for NASA Deputy Administrator role
    May 8, 2025
  • Vast to complete Haven-1 primary structure in July 2025, ahead of target May 2026 launch date
    May 7, 2025
  • SpaceX launch 28 Starlink satellites on 470th Falcon 9 rocket launch
    May 6, 2025
  • SpaceX launches largest batch of Starlink V2 Mini satellites to date
    May 3, 2025
  • SpaceX puts Vandenberg launch on hold
    May 3, 2025
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