Delta 4 – Page 4 – Spaceflight Now

Long March, Soyuz and Falcon rockets topped 2019’s launch leaderboard

January 2, 2020 Stephen Clark

China led the world with 34 orbital launch attempts in 2019 — including two failures — followed by 22 flights from Russian-operated launch pads and 21 satellite delivery missions originating from U.S. spaceports, all of which were successful.

ULA kicks off next Delta 4-Heavy launch campaign

November 17, 2019 Stephen Clark

The next Delta 4-Heavy rocket was raised vertical Friday at Cape Canaveral, signaling the start of a comprehensive series of pre-flight tests before liftoff next year with a top secret U.S. government spy satellite.

Live coverage: Kennedy Space Center to reopen Friday

August 30, 2019 Stephen Clark

After assessing any damage to the spaceport caused by Hurricane Dorian as it narrowly missed Florida’s east coast, NASA says the Kennedy Space Center will reopen for normal operations Friday. Teams rolled the Space Launch System’s mobile launch platform from pad 39B back into the cavernous Vehicle Assembly Building last week for safekeeping during the storm.

Kennedy Space Center braces for Hurricane Dorian

August 29, 2019 William Harwood

NASA civil servants and the agency’s contractor work force are bracing for high winds and rain from Hurricane Dorian, securing rocket stages, spacecraft assembly areas and even hauling a 6.7-million-pound mobile launch tower, designed for the huge rocket being built for the Artemis moon program, back to the cavernous Vehicle Assembly Building for safekeeping.

Photos: ULA’s Delta 4-Medium flies for the last time

August 26, 2019 Stephen Clark

The last flight of United Launch Alliance’s Delta 4-Medium rocket lifted off Aug. 22 from Cape Canaveral Air Force Station in Florida, riding more than 1.2 million pounds of thrust from a hydrogen-fueled main engine and two strap-on solid rocket motors.

Five more Delta 4-Heavy flights in ULA backlog after final “single stick” launch

August 22, 2019 Stephen Clark

The last Delta 4 launcher to fly in a single-core configuration rumbled into space Thursday morning from Cape Canaveral with a GPS navigation satellite, leaving United Launch Alliance with five more Delta 4-Heavy missions on contract through late 2023 before the Delta rocket family retires from service.

Delta 4 launch seen from press viewing site (members only)

August 22, 2019 Spaceflight Now

The final Delta 4 Medium rocket lifts off from Cape Canaveral Air Force Station on August 22, 2019, carrying into orbit the U.S. Air Force’s GPS 3 SV02 navigation satellite.

Photos: Final “single stick” Delta 4 rocket lifts off from Cape Canaveral

August 22, 2019 Stephen Clark

The last Delta 4-Medium rocket lifted off from Cape Canaveral Thursday with a GPS navigation satellite for the U.S. Air Force.

Delta 4 rocket’s launch timeline with GPS 3 SV02

August 22, 2019 Stephen Clark

A United Launch Alliance Delta 4 rocket will deliver the U.S. Air Force’s second GPS 3-series navigation satellite into an elliptical transfer orbit nearly two hours after liftoff from Cape Canaveral.

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.