‘In A Real Flight Environment’: 40 Years Since Enterprise Took the Shuttle From Ground to Air (Part 1)

NASA’s Boeing 747 Shuttle Carrier Aircraft (SCA) is pictured here with shuttle Enterprise during the first of the shuttle program’s Approach and Landing Tests (ALT) at Edwards Air Force Base, Calif., in summer 1977. Photo Credit: NASA

When we think of the Space Shuttle, we think of the five spaceworthy orbiter vehicles—Columbia, Challenger, Discovery, [...]