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Live coverage: Delta 4 rocket lifts off with GPS satellite

August 22, 2019 Stephen Clark

The last flight of the single-core variant of United Launch Alliance’s Delta 4 rocket lifted off at 9:06 a.m. EDT (1306 GMT) Thursday from Cape Canaveral Air Force Station, Florida. The 207-foot-tall launcher carried 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 Stephen Clark

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 Stephen Clark

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.

Delta 4 launch delayed as ULA probes supplier concern

July 17, 2019 Stephen Clark

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.

GPS satellite encapsulated for Delta 4 launch

July 4, 2019 Stephen Clark

The U.S. Air Force’s next GPS navigation satellite has been closed up inside the payload fairing of its Delta 4 launcher ahead a liftoff from Cape Canaveral scheduled for July 25.

China adds to Beidou fleet with Long March launch

June 24, 2019 Stephen Clark

Another satellite for China’s Beidou navigation network rocketed into orbit Monday on top of a Long March 3B launcher.

NASA technology experiments hitching a ride on SpaceX’s Falcon Heavy rocket

June 24, 2019 Stephen Clark

NASA is sending into orbit Monday night a spacecraft to test a safer type of rocket fuel, an ultra-precise atomic clock that could change the way missions navigate in deep space, and an experiment to examine the resiliency of electronics to radiation.