But according to Cameron, the atmosphere on Mars, the first planet where astronomers found the presence of organic compounds, is too reactive.
"There may have been life on Mars at one point, but it is quite unlikely now," Cameron said.
Although scientists do not see Callisto as a possible source of life, the Galileo Project focuses on further study of the moon.
Specifically, Hibbittz's research coordinates data from NIMS with geological information to provide scientists with a more accurate perspective of the physical and chemical processes taking place on Callisto.
But while the possibility of life somewhere else in the solar system seems exciting, the discovery is nothing new for Hibbittz.
"Being in the middle of it, one loses the perspective of how exciting it is," he said.