G. Lyle Hoffman is Professor Emeritus of Physics at Lafayette College. He taught physics and astronomy classes for 37 years, including a Freshman Seminar on the Uses and Abuses of Science in Science Fiction. Research projects sent him to Arecibo Observatory many times, and he has most recently been involved in the ALFALFA survey and follow-up science. His science fiction books feature a great deal of physics and astronomy as it is currently understood, extrapolated into the far future. The goal is to write fantastic stories of far away places and very long timescales which include no plot elements nor phenomena that have already been proved impossible by experiment and observation.