In this image from Sept. 5, 1983, Guion “Guy” Bluford checks out the sample pump on the continuous flow electrophoresis system experiment in the middeck of the Earth-orbiting space shuttle Challenger.

In this image from Sept. 5, 1983, Guion “Guy” Bluford checks out the sample pump on the continuous flow electrophoresis system experiment in the middeck of the Earth-orbiting space shuttle Challenger.
Sign up now to receive our e-mail newsletter.