May 16, 2025
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WGS 10

Delta 4

Photos: Delta 4 rocket blasts off from Cape Canaveral

March 20, 2019 Stephen Clark

A hydrogen-fueled main engine and four solid rocket boosters combined to propel a United Launch Alliance Delta 4 rocket off its launch pad at Cape Canaveral on March 15, successfully sending a U.S. Air Force communications satellite into orbit.

Delta 4

Delta 4 rocket launches Air Force’s 10th WGS broadband satellite

March 16, 2019 Stephen Clark

United Launch Alliance placed a new satellite in orbit with a fiery Friday night blastoff from Cape Canaveral, using a version of the Delta 4 rocket that is nearing retirement to supplement a U.S. military network relaying signals from drones and battlefield commanders.

Delta 4

Delta 4 rocket’s launch timeline with WGS 10

March 15, 2019 Stephen Clark

A United Launch Alliance Delta 4 rocket will deliver the U.S. Air Force’s tenth Wideband Global SATCOM communications satellite to a supersynchronous transfer orbit around 37 minutes after lifting off from Cape Canaveral.

Delta 4

Photos: Mobile gantry retracted at Delta 4 launch pad

March 15, 2019 Stephen Clark

hese photos show the 330-foot-tall mobile service tower moving into position for liftoff of a Delta 4 rocket from Cape Canaveral’s Complex 37B launch pad Friday.

Delta 4

Live coverage: Delta 4 rocket launches from Cape Canaveral

March 15, 2019 Stephen Clark

A United Launch Alliance Delta 4 rocket lifted off from Cape Canaveral at 8:26 p.m. EDT Friday (0026 GMT Saturday) with the U.S. Air Force’s tenth Wideband Global SATCOM satellite, extending the reach of the military’s highest-capacity satellite communications network.

Mission Reports

ULA plans to ring in the weekend with Friday evening launch

March 13, 2019 Stephen Clark

United Launch Alliance ground crews are putting the final touches on a Delta 4 rocket scheduled for blastoff Friday evening from Cape Canaveral with a U.S. Air Force communications satellite.

Mission Reports

Military satellite joined with Delta 4 rocket at Cape Canaveral

March 2, 2019 Stephen Clark

The addition of a U.S. Air Force communications satellite has capped the assembly of a 218-foot-tall United Launch Alliance Delta 4 rocket at Cape Canaveral set for liftoff the evening of March 13.

Mission Reports

Air Force releases new target dates for upcoming military launches

September 7, 2018 Stephen Clark

Managers have pushed back the next flight of United Launch Alliance’s Delta 4-Heavy rocket from a launch pad in California until no sooner than early December, and the first launch of SpaceX’s Falcon Heavy for the U.S. Air Force has likely been delayed to some time early next year, officials said this week.

News Headlines

  • SpaceX launches 1,000th Starlink satellite of the year during Friday morning mission
    May 16, 2025
  • Axiom Mission 4 delayed due to Dragon capsule readiness
    May 14, 2025
  • SpaceX launches 475th Falcon 9 rocket to date on afternoon Starlink flight
    May 14, 2025
  • Intuitive Machines’ CEO points to issues that prevented upright touchdown during IM-2 Moon landing
    May 14, 2025
  • SpaceX launches 26 Starlink satellites on Falcon 9 rocket from Vandenberg SFB
    May 12, 2025
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