United Launch Alliance has begun stacking its first Atlas 5 rocket to fly in service to the International Space Station, a commercial mission to send supplies to the orbiting complex.

A collection of pad photos from the ULA Atlas 5 rocket launch of the X-37B spaceplane on its fourth mission taken by photographer Walter Scriptunas II.

An Air Force missile detection spacecraft will, effectively, lose its position in the Atlas 5 rocket’s cramped manifest over the next few months after the flight-worthiness of a thruster on the satellite was called into question and delayed its Oct. 3 liftoff date.