| 1. unprecedented space tragedy | (f) a sad accident of a kind that has never happened before in space |
| 2. certified flight instructor | (e) a person with the correct qualification to teach people to fly planes |
| 3. space mission | (d) a set of jobs to be done in space by a group |
| 4. super specialisation | (g) great expertise in a limited field or a particular subject |
| 5. encyclopedic knowledge | (b) having knowledge of a wide variety of subjects |
| 6. awe-inspiring | (a) something that causes feelings of respect and wonder |
| 7. in this age | (c) nowadays, in these times |