Worden flew as Command Module Pilot on Apollo 15, the first of the extended J-series lunar missions. While David Scott and James Irwin explored Hadley-Apennine on the surface, Worden orbited the Moon alone aboard Endeavour, operating cameras, mapping instruments, and scientific equipment from the command and service module — open definition. His work helped expand Apollo from a landing race into a more mature program of lunar science.

On the return to Earth, Worden performed a trans-Earth coast EVA to retrieve film cassettes from the service module's Scientific Instrument Module bay. After NASA, he became a writer, speaker, and advocate for space education. His career is often associated with the quiet precision of command-module work: solitary, technical, and essential to the success of a lunar landing mission.

Worden's background fit the broader pattern of the early astronaut corps: technical training, operational discipline, and a career built around difficult work before spaceflight. His formal education included United States Military Academy (B.S. Military Science, 1955), and University of Michigan (M.S. Astronautical/Aeronautical Engineering and Instrumentation Engineering, 1963). His service background is recorded as Colonel, United States Air Force. His personal record also sits alongside a family life recorded as three marriages, two children, one stepchild, a reminder that these careers unfolded within ordinary lives as well as national history.

Worden's flown space career centered on Apollo 15, where he served as Command Module Pilot. First J-series Apollo mission, with a longer lunar stay and expanded science objectives at Hadley-Apennine. The mission introduced the Lunar Roving Vehicle and greatly expanded Apollo surface mobility and geology work. The EVA record adds another layer to the mission: About 38 minutes; Worden retrieved film cassettes during the trans-Earth coast EVA.