Table: interplanetary_voyages_2
Columns: spacecraft
destination
launched
closest_approach
time_elapsed

Question: What launched has mariner 4 as the spacecraft?
SQL: SELECT "launched" FROM interplanetary_voyages_2 WHERE "spacecraft" = 'mariner 4'

Question: What launched has 158 days (5 months, 8 days) as the time elapsed?
SQL: SELECT "launched" FROM interplanetary_voyages_2 WHERE "time_elapsed" = '158 days (5 months, 8 days)'