Table: frank_borman
Columns: name
born
age_on_mission
mission
mission_dates
service

Question: What is the lowest age of an astronaut named Stu Roosa?
SQL: SELECT MIN("age_on_mission") FROM frank_borman WHERE "name" = 'stu roosa'

Question: What mission did the astronaut who 38 years old on the mission and who served in NASA serve on?
SQL: SELECT "mission" FROM frank_borman WHERE "service" = 'nasa' AND "age_on_mission" = 38