CREATE TABLE table_39488 ("Spacecraft" CLOB, "Destination" CLOB, "Launched" CLOB, "Closest approach" CLOB, "Time elapsed" CLOB)

What launched has mariner 4 as the spacecraft?
SELECT "Launched" FROM table_39488 WHERE "Spacecraft" = 'mariner 4'
SELECT "Launched" FROM "table_39488" WHERE "Spacecraft" = 'mariner 4'