Mark Littmann is a professor of journalism and electronic media at the University of Tennessee.  He holds two endowed professorships: the Hill Chair of Excellence in Science Writing and the CCI Board of Visitors Professorship.  He teaches three different courses in how to write about science for the general public.

Littmann received a B.S. in chemistry and literature at MIT, an M.A. in creative writing at Hollins College, and a Ph.D. in English at Northwestern University. 

Before joining the University of Tennessee in 1991, he directed a large planetarium in Salt Lake City for 18 years and taught astronomy at the University of Utah and at Loyola University in Baltimore.

Littmann's most recent works are Totality: The Great American Eclipses of 2017 and 2024, a book for the general public; Eclipse--The Sun Revealed, a planetarium star program syndicated internationally; and Eclipse 2017, a book for children ages 8-14.  Littmann is the author of four other books about astronomy that have won four national awards.