— -- By age 33, Barbara Morgan had taught school on an Indian reservation in the Rockies and in Ecuador's capital in the Andes. That did not quiet her longing for a classroom higher in the sky.

Acquired by NASA in 1985, the DC-8 was used on 158 science campaigns. Credit: Matt Hartman NASA’s long-serving McDonnell Douglas DC-8-72 research aircraft flew for the final time on May 15 when it was ...