What is the first science fiction story that considers the practicalities of getting to Mars, landing on it, and returning safely? I'm interested in stories that focus on things like consumables (air, food...) and are as realistic as possible given the science known at the time of writing. Stories like John Carter, where he magically appears on Mars, do not fit my bill. I will accept a story where, for example, Mars has breathable air if it was written before measurements of the Martian atmosphere were done in the real world. I acknowledge that all sci fi authors have to make assumptions and build a narrative.