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Atlas 5/SBIRS GEO Flight 4 launch timeline
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
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
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.
VideoLive coverage: Atlas 5 launches from Cape Canaveral with missile warning satellite
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
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
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
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
The 32-story-tall mobile service tower at the Delta 4’s launch pad at Vandenberg Air Force Base in California was retracted away from the rocket Thursday in advance of a planned liftoff with a top secret National Reconnaissance Office payload.
VideoLive coverage: Delta 4 launches from California with spy satellite
United Launch Alliance kicked off its 2018 launch campaign with a Delta 4 rocket flight at 2:11 p.m. PST (5:11 p.m. EST; 2211 GMT) Friday from Vandenberg Air Force Base in California. Gusty winds forced officials to call off a launch attempt Wednesday, and technical problems halted a countdown Thursday multiple times. The Delta 4 launched with a top secret spy satellite for the National Reconnaissance Office.

Delta 4 rocket, clandestine spy satellite ready for liftoff from California
Technicians are putting the final touches on a United Launch Alliance Delta 4 rocket set for liftoff Thursday from Vandenberg Air Force Base, a military base on California's Central Coast, with a top secret spy satellite for the National Reconnaissance Office.