The door of teacher Ed Galindo’s classroom at Shoshone-Bannock High School reads: Yih’Yih’Tzin Agudu Duvoponeed. In the local Uto-Aztecan dialect, it’s a rough translation of the word “biology.” And every Friday, teenage members of the “NASA Club” gather here to prepare experiments for Space Shuttle missions, which, sometime in the future, could lead to putting a human on Mars. “It won’t be our generation that goes to Mars,” Mr. Galindo says, patting student Amber Larkin on the back. “It will be hers and those behind her. I want these kids to feel that they have a place in space.”