Frank Curtis "Curt" Michel (June 5, 1934 – February 26, 2015) was an American astrophysicist; a professor of astrophysics at Rice University in Houston, Texas; a United States Air Force pilot; and a NASA astronaut.

[6] Michel was a junior engineer with the Firestone Tire and Rubber Company's guided missile division before joining the Air Force in 1955.

Michel's efforts there were directed at researching and teaching space sciences,[7] such as the interaction of solar winds and the lunar atmosphere.

[11] After his resignation from NASA, Michel returned to teaching and research at Rice, where he also served as chair of the space physics and astronomy department from 1974 to 1979.

Michel was named a Guggenheim Fellow to the École Polytechnique in Palaiseau, France, from 1979 to 1980, and was awarded a Humboldt Prize to study in Heidelberg at the Max Planck Institute for Nuclear Physics, in West Germany, from 1983 to 1984.

Following his retirement, Michel spent the 2001–2002 academic year in Japan at the Solar-Terrestrial Environment Laboratory of the University of Nagoya as a visiting professor.