George Edward Fox (born December 17, 1945) is an astrobiologist, a Professor Emeritus and researcher at the University of Houston.

From the Fall of 1973 until 1977, Fox was a research associate with Carl R. Woese at the University of Illinois at Urbana-Champaign.

[4] Fox and Woese also introduced the idea of a progenote as a primordial entity in the evolution of life.

[5] In the Fall of 1977, Fox moved on to the University of Houston and as a new Assistant Professor in Biochemical & Biophysical Sciences, continued to collaborate with Woese.

[9][10] He has also assisted NASA scientists on multiple occasions in characterizing relevant microbial communities.