| Term | History |
| 1 | Became a Line/Crew at age 18 |
| 1 | Is now a Crewman |
| 1 | Good fortune |
| 1 | Promoted to Line/Crew rank 1 |
| 1 | Is now a Able Spacehand |
| 2 | Continued as Line/Crew at age 22 |
| 2 | Scarred. Fully recovered. |
| 3 | Continued as Line/Crew at age 26 |
| 3 | Commanding officer takes an interest in your career. |
| 3 | Promoted to Line/Crew rank 2 |
| 3 | Is now a Petty Officer, 3rd class |
| 4 | Continued as Line/Crew at age 30 |
| 4 | Vessel participates in a diplomatic mission. |
| 5 | Continued as Line/Crew at age 34 |
| 5 | Commanding officer takes an interest in your career. |
| 5 | Promoted to Line/Crew rank 3 |
| 5 | Is now a Petty Officer, 2nd class |
| 6 | Continued as Line/Crew at age 38 |
| 6 | Injured. Fully recovered. |
| 6 | Promoted to Line/Crew rank 4 |
| 6 | Is now a Petty Officer, 1st class |
| 7 | Continued as Line/Crew at age 42 |
| 7 | Refuse to abuse your position for profit |
| 7 | Promoted to Line/Crew rank 5 |
| 7 | Is now a Chief Petty Officer |
| 7 | Forced to muster out. |
| 8 | Became a Scientist at age 46 |
| 8 | Work for an eccentric but brilliant mentor, who becomes an Ally. |
| 8 | Promoted to rank 1 |
| 9 | Continued as Scientist at age 50 |
| 9 | Work for an eccentric but brilliant mentor, who becomes an Ally. |
| 10 | Continued as Scientist at age 54 |
| 10 | Work leads to a considerable breakthrough. |
| 10 | Promoted to rank 2 |
| 11 | Aging Crisis. Owe 60,000 for medical bills. |
| 11 | Continued as Scientist at age 58 |
| 11 | Work for an eccentric but brilliant mentor, who becomes an Ally. |
| 11 | Promoted to rank 3 |
| 12 | Aging Crisis. Owe 10,000 for medical bills. |
| 12 | Continued as Scientist at age 62 |
| 12 | Advanced training in a specialist field. |
| 12 | Forced to continue current assignment |
| 12 | Promoted to rank 4 |
| 13 | Aging Crisis. Owe 30,000 for medical bills. |
| 13 | Continued as Scientist at age 66 |
| 13 | Work for an eccentric but brilliant mentor, who becomes an Ally. |
| 13 | Promoted to rank 5 |
| 14 | Aging Crisis. Owe 50,000 for medical bills. |