Steven J. Dick (born October 24, 1949, Evansville, Indiana) is an American astronomer, author, and historian of science most noted for his work in the field of astrobiology.

Dick served as the chief historian for the National Aeronautics and Space Administration (NASA) from 2003 to 2009[1] and as the Baruch S. Blumberg NASA/Library of Congress Chair in Astrobiology from 2013 to 2014.

From 2011-2012 he held the Charles A. Lindbergh Chair in Aerospace History at the National Air & Space Museum.

Dick argues that from an epistemological point of view the methods of astrobiology in the twentieth century are as empirical as in any historical science such as astronomy or geology.

In 2006, Dick received the LeRoy E. Doggett Prize from the American Astronomical Society for a career that has significantly influenced the field of the history of astronomy.

[13] Also in 2006, Dick was selected to deliver the first Billingham Cutting Edge Lecture,[14] at the International Astronautical Congress in Valencia, Spain.