Borman commanded Gemini 7 with Jim Lovell, spending nearly fourteen days in orbit to prove that astronauts and spacecraft could endure a lunar-mission-length flight. Gemini 7 also served as the target for Gemini 6A, producing the first crewed rendezvous — open definition in space. The mission was physically demanding and operationally important, giving NASA confidence in long-duration flight before Apollo.

Borman later commanded Apollo 8, the first crewed mission to leave Earth orbit, travel to the Moon, and orbit another celestial body. With Lovell and William Anders, he helped transform Apollo from Earth-orbit testing into lunar exploration. The crew's Earthrise photograph and Christmas Eve broadcast became defining cultural moments of the 1960s. After NASA, Borman moved into airline leadership and eventually became chief executive of Eastern Air Lines.

Borman'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, 1950), and California Institute of Technology (M.S. Aeronautical Engineering, 1957). His service background is recorded as Colonel, United States Air Force. His personal record also sits alongside a family life recorded as widowed, two children, a reminder that these careers unfolded within ordinary lives as well as national history.