United Launch Alliance – Page 34

Atlas 5 launch as seen from the KSC Press Site (members only)

January 20, 2018 Spaceflight Now

An Atlas 5 rocket lifts off from launch complex 41 at Cape Canaveral carrying the SBIRS GEO-4 missile early warning satellite in this video shot from the Kennedy Space Center Press Site.

Atlas 5 team scrubs launch to study troublesome valve

January 19, 2018 Stephen Clark

Launch of an Atlas 5 rocket from Cape Canaveral with a U.S. Air Force infrared surveillance satellite was scrubbed Thursday evening after engineers encountered a balky valve associated with the first stage’s liquid oxygen system.

Atlas 5/SBIRS GEO Flight 4 launch timeline

January 18, 2018 Spaceflight Now

This is the launch timeline to be followed by the Atlas 5 rocket’s ascent into orbit from Cape Canaveral with the SBIRS GEO Flight 4 satellite for U.S. military infrared reconnaissance.

Photos: Ground crews roll 75th Atlas 5 rocket to its launch pad

January 17, 2018 Stephen Clark

The 75th Atlas 5 rocket rolled to its launch pad at Cape Canaveral on Wednesday, a day before it was scheduled to lift off with a U.S. Air Force satellite to provide warnings of missile launches that might threaten U.S. territories and allies.

Lawmakers question safety, schedule for Boeing/SpaceX commercial crew ships

January 17, 2018 William Harwood

Boeing and SpaceX hope to launch commercial crew ferry ships on long-awaited test flights later this year, but both companies face major challenges getting the spacecraft certified before late 2019 when seats aboard Russian Soyuz spacecraft will no longer be easily available for NASA space station crews, officials told lawmakers Wednesday.

Live coverage: Atlas 5 launches from Cape Canaveral with missile warning satellite

January 17, 2018 Stephen Clark

The U.S. Air Force’s fourth new-generation SBIRS missile warning satellite is headed for geosynchronous orbit after lifting off from Cape Canaveral at 7:48 p.m. EST Friday (0048 GMT Saturday), after a one-day delay caused by a troublesome fill-and-drain valve.

Photos: Delta 4 blasts off from Vandenberg’s historic SLC-6 launch pad

January 16, 2018 Stephen Clark

A United Launch Delta 4 rocket lifted off Friday from the SLC-6 launch pad at Vandenberg Air Force Base in California, powering into orbit from a historic seaside complex originally developed for crewed missions.

Delta 4 rocket successfully lofts clandestine NRO satellite into orbit

January 13, 2018 Stephen Clark

A United Launch Alliance Delta 4 rocket climbed into orbit Friday from Vandenberg Air Force Base in California with a top secret spy satellite, adding a new set of eyes in the sky for the U.S. government’s intelligence community and nudging part of the Delta 4 family closer to retirement.

Watch a replay of the Delta 4 NROL-47 launch

January 12, 2018 Spaceflight Now

Watch a replay of the United Launch Alliance Delta 4 rocket launching from Vandenberg Air Force Base in California, hauling into orbit a new eye in the sky for the National Reconnaissance Office.

Photos: Mobile gantry rolled back to reveal Delta 4 rocket at Vandenberg

January 11, 2018 Stephen Clark

The 32-story-tall mobile service tower at the Delta 4’s launch pad at Vandenberg Air Force Base in California was retracted away from the rocket Thursday in advance of a planned liftoff with a top secret National Reconnaissance Office payload.