Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_name_70 (mission VARCHAR, service VARCHAR, age_on_mission VARCHAR)

### Question ###
What mission did the astronaut who 38 years old on the mission and who served in NASA serve on?

### Accurate SQL ###

SELECT mission FROM table_name_70 WHERE service = "nasa" AND age_on_mission = 38