CREATE TABLE table_70416 ("Name" CLOB, "Born" CLOB, "Age at first step" CLOB, "Mission" CLOB, "Lunar EVA dates" CLOB, "Service" CLOB)

Which astronaut went on the Apollo 16 mission at the age of 36y 6m 18d to step on the moon?
SELECT "Name" FROM table_70416 WHERE "Mission" = 'apollo 16' AND "Age at first step" = '36y 6m 18d'
SELECT "Name" FROM "table_70416" WHERE "Age at first step" = '36y 6m 18d' AND "Mission" = 'apollo 16'