Jack Edward Froehlich (sometimes Froelich) (May 7, 1921 – November 1967) was an American

aerospace engineer Aerospace engineering is the primary field of engineering concerned with the development of aircraft and spacecraft. It has two major and overlapping branches: aeronautical engineering and astronautical engineering. Avionics engineering is si ...

(rocket scientist). He worked at the

Jet Propulsion Laboratory The Jet Propulsion Laboratory (JPL) is a federally funded research and development center and NASA field center in the City of La Cañada Flintridge, California, United States. Founded in the 1930s by Caltech researchers, JPL is owned by NASA an ...

, where he was a project director for the

Explorer 1 Explorer 1 was the first satellite launched by the United States in 1958 and was part of the U.S. participation in the International Geophysical Year (IGY). The mission followed the first two satellites the previous year; the Soviet Union's ...

program. Caltech's ''Jack E. Froehlich Memorial Award''Caltech Prizes and Awards
is named after him, as is the crater Froelich on the

Moon The Moon is Earth's only natural satellite. It is the fifth largest satellite in the Solar System and the largest and most massive relative to its parent planet, with a diameter about one-quarter that of Earth (comparable to the width of ...

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* 1921 births 1967 deaths Froelich, Jack Edward 20th-century American engineers {{US-engineer-stub