Bio: Before writing Mars Crossing, his first novel, Geoffrey A. Landis had written and published short stories in all of the major science fiction magazines-- about 60 stories in all-- and had won both the Nebula and the Hugo awards for best science fiction story.

In addition to being a science fiction writer, Landis is also a scientist, working for the Ohio Aerospace Institute at the NASA John Glenn Research Center. One of his specialities is, no surprise, Mars. One of his experiments, "MAE", flew to Mars on the Mars Pathfinder mission, and he is now working on a new experiment, "DART", to fly to Mars on a future lander mission.