| Term | History |
| 1 | Became a Explorer at age 18 |
| 1 | Psychologically damaged by your time in the scouts. |
| 2 | Became a Flight at age 22 |
| 2 | Is now a Crewman |
| 2 | Special assignment or duty on board ship. |
| 2 | Promoted to Flight rank 1 |
| 2 | Is now a Able Spacehand |
| 3 | Continued as Flight at age 26 |
| 3 | Vessel participates in a diplomatic mission. |
| 3 | Gain a contact. |
| 3 | Attempt at commissioned failed. |
| 3 | Promoted to Flight rank 2 |
| 3 | Is now a Petty Officer, 3rd class |
| 4 | Continued as Flight at age 30 |
| 4 | Vessel participates in a diplomatic mission. |
| 4 | Gain a contact. |
| 4 | Forced to muster out. |
| 5 | Switched to Engineer/Gunner at age 34 |
| 5 | Injured. Fully recovered. Owe 1,250 for medical bills. |
| 6 | Became a Scientist at age 38 |
| 6 | Make a breakthrough in your field. |
| 6 | Promoted to rank 1 |
| 7 | Continued as Scientist at age 42 |
| 7 | Advanced training in a specialist field. |
| 8 | Continued as Scientist at age 46 |
| 8 | Work for an eccentric but brilliant mentor, who becomes an Ally. |
| 9 | Continued as Scientist at age 50 |
| 9 | Make a breakthrough in your field. |
| 9 | Promoted to rank 2 |
| 10 | Continued as Scientist at age 54 |
| 10 | An expedition or voyage goes wrong, leaving you stranded in the wilderness. |
| 10 | Promoted to rank 3 |
| 11 | Aging Crisis. Owe 60,000 for medical bills. |
| 11 | Continued as Scientist at age 58 |
| 11 | A romantic relationship ends badly. Gain a Rival or Enemy. |
| 11 | Promoted to rank 4 |
| 12 | Aging Crisis. Owe 40,000 for medical bills. |
| 12 | Continued as Scientist at age 62 |
| 12 | Refuse to join a cheat in some fashion. |
| 12 | Forced to muster out. |
| 13 | Aging Crisis. Owe 50,000 for medical bills. |