Answer:
1.uprecedented space tragedy----- a sad accident of a kind that has never happened before in space.
2.Certified flight instructor----- a person with the correct qualification to teach people to fly planes.
3.Space mission----a set of jobs to be done in space by a group.
4.Super specialisation----- great expertise in a limited field or a particular subject.
5.encyclopaedic knowledge-----having knowledge of a wide variety of subjects.
6awe-inspiring---- something that causes feelings of respect and wonder.
7.in this age------ nowadays, in these times.
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