Watch a live view of the Atlas 5 launch pad with countdown audio (members only)

This is our comprehensive fact sheet previewing the United Launch Alliance Atlas 5 rocket deployment of the classified NROL-52 payload for the National Reconnaissance Office.

NASA says initial checks show no damage to the Atlas 5 rocket or the agency’s asteroid-bound OSIRIS-REx spacecraft that stood within the Vertical Integration Facility just a mile away from the SpaceX explosion Thursday.

United Launch Alliance technicians were allowed to return to the Atlas 5 pad Tuesday as firefighters continued to wage air and ground campaigns against the wildfire burning at Vandenberg Air Force Base in California.