The Martians is a collection of short stories set on Mars, some filling in unexplored moments of the Mars trilogy, others describing different histories for Mars. I included two Mars stories that predate the trilogy, Exploring Fossil Canyon (about finding or not finding fossil life on Mars, but written in 1982), and Green Mars (about climbing Olympus Mons). These stories don't quite match the history described in the trilogy, so that got me thinking about doing some alternative histories. The result is like the subconscious of the trilogy.