December 9, 2025
Spaceflight Now
  • Home
  • News Archive
  • Launch Schedule
  • Mission Reports
    • Antares Launcher
    • Ariane 5
    • Atlas 5
    • Delta 4
    • Falcon 9
    • Falcon Heavy
    • H-2A
    • Soyuz
    • Space Station
  • Members
    • Sign in
    • Become a member
    • Members Content
  • Live
  • Shop
Breaking News
  • [ December 7, 2025 ] SpaceX launches 3,000th Starlink satellite in 2025 on record-setting 32nd flight of Falcon 9 booster Falcon 9
  • [ December 7, 2025 ] SpaceX launches 28 Starlink satellites on Falcon 9 rocket from Vandenberg SFB Falcon 9
  • [ December 5, 2025 ] International Space Station prepares for new commander, heads into final five years of planned operations Mission Reports
  • [ December 4, 2025 ] SpaceX launches 28 Starlink satellites on Falcon 9 rocket from Vandenberg SFB Falcon 9
  • [ December 4, 2025 ] Orion hatch ‘blemish’ delays launch day rehearsal for Artemis 2 astronauts Mission Reports

Air Force

Delta 4

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

August 17, 2016 Justin Ray

A pair of Air Force surveillance satellites headed to geosynchronous orbit today to reconnoiter the high ground, departing Cape Canaveral aboard a United Launch Alliance Delta 4 rocket at 12:52 a.m. EDT (0452 GMT). It is the 375th Delta rocket flight since 1960.

Delta 4

Preview: Two space informants to be launched to geosynchronous orbit

August 16, 2016 Justin Ray

The Air Force will launch a second pair of small security probes 22,300 miles above the Earth using a Delta 4 rocket on Friday to alert ground controllers of impending space collisions and monitor potential meddling with U.S. orbiting assets.

Delta 4

Timeline: Delta 4/GSSAP launch events

August 16, 2016 Justin Ray

Follow the unclassified portion of the Delta 4 rocket’s ascent to space from Cape Canaveral’s Complex 37 launch pad with the U.S. Air Force’s two Geosynchronous Space Situational Awareness Program, or GSSAP, satellites.

Uncategorized

Weather outlook good for Friday’s early morning Delta 4 launch

August 15, 2016 Justin Ray

Air Force meteorologists are giving favorable weather odds for the Delta 4 rocket to launch a pair of space surveillance satellites early Friday morning from Cape Canaveral.

Delta 4

Photos and video: Payload hoisted atop Delta 4 for upcoming launch

August 12, 2016 Justin Ray

The two Geosynchronous Space Situational Awareness Program, or GSSAP, satellites for the U.S. military are mounted aboard the United Launch Alliance Delta 4 rocket. Liftoff is planned for Aug. 19 from Cape Canaveral.

Delta 4

Air Force satellite duo mated to Delta 4 rocket for next week’s launch

August 9, 2016 Justin Ray

Two space informants to track objects in geosynchronous orbit have been mounted atop their Delta 4 launch vehicle for liftoff Aug. 19.

Atlas 5

Next missile warning sentinel set for October launch to geosynchronous orbit

August 5, 2016 Justin Ray

A highly sophisticated U.S. Air Force satellite to sound the alarm when an enemy missile launches has shipped to its Florida launch site for liftoff in October aboard a United Launch Alliance Atlas 5 rocket.

Delta 4

Delta 4 rocket undergoes launch day rehearsal for its next Air Force mission

July 30, 2016 Justin Ray

A United Launch Alliance Delta 4 rocket went through a practice countdown and fueling exercise this week to prepare for its Aug. 19 liftoff to deliver a pair of orbital surveillance satellites into space.

Delta 4

Delta 4 rolls out for second launch in ‘neighborhood watch’ effort

July 6, 2016 Justin Ray

Just three weeks after the Delta 4-Heavy rocket left the launch pad on its way to a successful satellite-deployment mission for U.S. national security, a smaller booster in the family has rolled out for its August military flight.

Delta 4

Photos: More shots of Saturday’s Delta 4-Heavy rocket Launch

June 12, 2016 Justin Ray

Departing on three pillars of fire, the United Launch Alliance Delta 4-Heavy rocket lifted off at 1:51 p.m. from Cape Canaveral for a classified national security satellite deployment.

Posts pagination

« 1 … 5 6 7 … 17 »

News Headlines

  • SpaceX launches 3,000th Starlink satellite in 2025 on record-setting 32nd flight of Falcon 9 booster
    December 7, 2025
  • SpaceX launches 28 Starlink satellites on Falcon 9 rocket from Vandenberg SFB
    December 7, 2025
  • International Space Station prepares for new commander, heads into final five years of planned operations
    December 5, 2025
  • SpaceX launches 28 Starlink satellites on Falcon 9 rocket from Vandenberg SFB
    December 4, 2025
  • Orion hatch ‘blemish’ delays launch day rehearsal for Artemis 2 astronauts
    December 4, 2025
  • Jared Isaacman makes second appeal for NASA administrator position
    December 3, 2025
  • Sunset SpaceX launch adds 29 more Starlink satellites into low Earth orbit
    December 2, 2025
  • Arianespace launches South Korean Earth observation satellite on Vega-C flight
    December 2, 2025
  • SpaceX launches evening Falcon 9 rocket from Vandenberg SFB
    December 1, 2025
  • SpaceX kicks off December with predawn Falcon 9 rocket launch
    November 30, 2025
  • Home
  • News Archive
  • Launch Schedule
  • Mission Reports
    • Antares Launcher
    • Ariane 5
    • Atlas 5
    • Delta 4
    • Falcon 9
    • Falcon Heavy
    • H-2A
    • Soyuz
    • Space Station
  • Members
    • Sign in
    • Become a member
    • Members Content
  • Live
  • Shop

© 1999-2025 Spaceflight Now Inc