Video: Tower rollback prior to launch of Mars Pathfinder atop a Delta 2

The nation’s existing Atlas and Delta launch sites are vying for a future when United Launch Alliance completes its modernization with a new rocket system and downsizing to one pad on each coast.

Here’s a look by the numbers of the previous Delta 4 flight history and the remaining flights of the rocket named Delta.

The military-run spaceport at Cape Canaveral will soon be renamed Cape Canaveral Space Force Station to reflect the facility’s transition from the U.S. Air Force to the newly-created Space Force, military officials said Friday.