[3] He joined the HST Project at the Space Telescope Science Institute (STScI), in Baltimore, Maryland, in 1981, and was head of the Hubble Missions Office when he died in 2009.

"[4] Dr. Doxsey was born in Schenectady, New York, raised in Cleveland Heights, Ohio and earned his Ph.D. in physics at the Massachusetts Institute of Technology.

[2] The Institute's first director, Riccardo Giacconi, hired Doxsey nine years before the HST launch in 1990, to be the mission operations scientist.

During the following years he was responsible for mission science specifications and requirements, data calibration, operational planning and scheduling, as well as the actual day-to-day commanding of the observatory.

Doxsey worked on the development of new, state-of-the-art instruments for HST with NASA's Goddard Space Flight Center, which contributed to the enormous advance made in Hubble's scientific capabilities after launch, by replacing, in the course of several Space Shuttle visits from 1993 to May 2009, the original suite of instruments which had been specified and designed on the basis of technology that was many years old by the time HST finally became operational.