DAVID PARKER / SCIENCE PHOTO LIBRARY DAVID PARKER / SCIENCE PHOTO LIBRARY
Guard Hall, Operations Chief of "mission control" at NASA's Jet Propulsion Laboratory (JPL). He is seen in the Network Operations Control Center, the mission control room. Hall is responsible for real-time management of the Deep Space Network, NASA's wordwide tracking & communications complex which sends commands to & acquires data from plan- etary spacecraft. Among other missions, Hall (born 1948) was "Ops Chief" for the Voyager Project. Launched in 1977, the two Voyager craft acquired images & scientific data from encounters with Jupiter, Saturn, Uranus, Neptune & their moons. This portrait was taken in August 1989, at the time of Voyager 2's encounter with Neptune.
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