Photos: Gantry rolled back to reveal Atlas 5 rocket for launch

Four weeks, three launches, two coasts. October was an unprecedented month for United Launch Alliance and its venerable workhorse rocket.

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.

Loaded with over 7,300 pounds of goods for the International Space Station, a commercial Cygnus cargo vessel was mounted atop its Atlas 5 rocket booster Friday for launch Dec. 3.