August 23, 2025
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Breaking News
  • [ August 22, 2025 ] SpaceX launches 24 Starlink satellites on Falcon 9 rocket from Vandenberg SFB Falcon 9
  • [ August 22, 2025 ] SpaceX launches Space Force’s X-37B spaceplane to demo laser communications, quantum navigation Falcon 9
  • [ August 20, 2025 ] Launch preview: SpaceX to launch X-37B military spaceplane on Falcon 9 rocket from the Kennedy Space Center Falcon 9
  • [ August 20, 2025 ] Firefly Aerospace explores launching its Alpha rocket from Japan Alpha
  • [ August 17, 2025 ] SpaceX flies 24 Starlink satellites on its 100th Falcon 9 rocket launch of 2025 Falcon 9

Live coverage: Tonight’s Delta 4 countdown and launch journal

August 17, 2016 Justin Ray


(Launch webcast begins at 12:27 a.m. EDT)

Mission Status Center

Live coverage of the United Launch Alliance Delta 4 rocket flight with two GSSAP space situational awareness satellites. Text updates will appear automatically below; there is no need to reload the page. Follow us on Twitter.

  • Air Force
  • Complex 37
  • Delta 375
  • Delta 4
  • GSSAP
  • Mission Status Center
  • United Launch Alliance

Related Articles

News

Next GPS satellite moves closer to launch date

July 6, 2015 Justin Ray

Joining the payload with its ride to space, United Launch Alliance crews today placed the next Global Positioning System satellite atop an Atlas 5 rocket for blastoff July 15.

Delta 4

Video: Delta 4 launches before dawn from California

February 10, 2016 Justin Ray

A replay of the United Launch Alliance Delta 4 rocket launching on the NROL-45 satellite-deployment mission for the National Reconnaissance Office from Vandenberg Air Force Base, California.

Falcon 9

Live coverage: SpaceX launches first upgraded Falcon 9 Block 5 rocket

May 10, 2018 Stephen Clark

SpaceX launched the first of the company’s upgraded generation of Falcon 9 launchers, known as Block 5, from the Kennedy Space Center on Friday at 4:14 p.m. EDT (2014 GMT). The Falcon 9 rocket lifted off with Bangladesh’s first communications satellite, and SpaceX recovered the rocket’s first stage on a vessel in the Atlantic Ocean.

News Headlines

  • SpaceX launches 24 Starlink satellites on Falcon 9 rocket from Vandenberg SFB
    August 22, 2025
  • SpaceX launches Space Force’s X-37B spaceplane to demo laser communications, quantum navigation
    August 22, 2025
  • Launch preview: SpaceX to launch X-37B military spaceplane on Falcon 9 rocket from the Kennedy Space Center
    August 20, 2025
  • Firefly Aerospace explores launching its Alpha rocket from Japan
    August 20, 2025
  • SpaceX flies 24 Starlink satellites on its 100th Falcon 9 rocket launch of 2025
    August 17, 2025
  • SpaceX schedules 10th test flight for Starship, details recent setbacks
    August 16, 2025
  • SpaceX launches 28 Starlink satellites on Falcon 9 rocket from Cape Canaveral
    August 14, 2025
  • ULA launches Vulcan rocket on first Space Force mission
    August 13, 2025
  • Launch preview: ULA to launch first national security mission on a Vulcan rocket
    August 12, 2025
  • SpaceX launches Amazon’s Project Kuiper satellites on fifth scheduled attempt
    August 10, 2025
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