The multidisciplinary field dedicated to figuring out how to leave
the planet without exploding, burning up, suffocating, or any combination of the above. It combines physics (thrust, trajectory), chemistry (fuel that doesn't blow up too soon), biology (keeping humans alive in a metal can), and
psychology (keeping those humans from murdering each other in said can). Spaceflight sciences have mastered the art of launching multi-billion-dollar equipment into the void, where it either works perfectly or becomes very expensive space junk. The field's greatest achievement is making the
impossible merely extremely difficult.
Example: "He studied spaceflight sciences for eight years to learn how to calculate orbital insertion burns. He now works at a company that launches
satellites and spends most of his time
explaining to
management why launches get delayed due to 'weather,' which is spaceflight-scientist for 'something's wrong and we need to pretend it's nature's fault.'"