| Term | Definition |
| Poppy | lost both legs in mining accident |
| Homer Hickam, Jr. | Sonny |
| the Captain | Homer was a protege of this man |
| The Great Six | elementary grades |
| Miss Olga | the mine |
| Sonny | Jr.'s nickname |
| Sputnik | was watched in the night sky of West VA |
| Roy Lee | friend with a car |
| War | town on way to school where Dorothy lives |
| Dorothy Plunk | biology lab partner |
| black phone | connection to the mine |
| Daisy Mae | Sonny's cat |
| Football Fathers | filed a lawsuit |
| drummer | Sonny's extracurricular |
| Mr. Dubbonet | union leader |
| black lung disease | Dad's problem |
| Quentin | smarty with a big stomach |
| Wernher Von Braun | hero of Sonny |
| biology study sessions | Sunday afternoons with Dorothy |
| BCMA | nickname for the rocket club |
| Buck | stupid football friend of Jim's |
| Miss Riley | biology teacher |
| Mr. Bykovski | welder |
| Auk I | name of rocket |
| Littlebit | fell into an old mind shaft |