August 22, 2019

Live coverage: Delta 4 rocket counting down to liftoff Thursday

August 22, 2019

The last flight of the single-core variant of United Launch Alliance’s Delta 4 rocket is set for blastoff at 9:01 a.m. EDT (1301 GMT) Thursday from Cape Canaveral Air Force Station, Florida. The 207-foot-tall launcher will carry a GPS navigation satellite into orbit for the U.S. Air Force.

ULA’s last Delta 4-Medium rocket set for launch Thursday

August 22, 2019

United Launch Alliance is set to retire part of its rocket family Thursday with the final flight of the Delta 4 rocket’s “single stick” configuration, a mission set for liftoff from Cape Canaveral carrying a new GPS navigation satellite into orbit for the U.S. Air Force.

ULA’s second launch of the month scheduled for Thursday

August 19, 2019

Weather forecasters expect a 70 percent chance of favorable conditions at Cape Canaveral for liftoff of a United Launch Alliance Delta 4 rocket Thursday with a GPS navigation satellite, marking the last flight of the Delta 4’s single-core variant after 29 flights since 2002.

GPS satellite installed atop Delta 4 launcher

August 2, 2019

The U.S. Air Force’s next GPS navigation satellite met its ride into space this week with the spacecraft’s bolting on top of a United Launch Alliance Delta 4 rocket at Cape Canaveral in preparation for liftoff Aug. 22.

Delta 4 launch delayed as ULA probes supplier concern

July 17, 2019

Concerns over an unspecified part flying on the upper stages of United Launch Alliance’s rockets have delayed the launch of a GPS satellite on a Delta 4 booster from July 25 to no earlier than Aug. 22. The same issue has also delayed an Atlas 5 launch.

Air Force releases new target dates for upcoming military launches

September 7, 2018

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.

SpaceX nabs GPS launch contract as Air Force opens more missions for bidding

March 18, 2017

The U.S. Air Force this week awarded SpaceX a contract to launch a Global Positioning System satellite in early 2019, concluding the second of as many as 15 competitions the military plans to run over the next year to pit SpaceX against United Launch Alliance for rights to lift defense and intelligence-gathering payloads into orbit.

Pentagon opens investigation into contracts with ULA

March 24, 2016

The U.S. Defense Department’s internal watchdog has opened a probe into whether the Pentagon’s contracts with United Launch Alliance were properly awarded after a former ULA executive implied the government rigged a recent procurement in favor of the company.

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