What type of figurative language is to disappear into thin air

the apollo program, also known as project apollo, was the third united states human spaceflight program carried out by the national aeronautics and space administration (nasa), which succeeded in landing the first humans on the moon from 1969 to 1972.

connections  to the  book night by elie wiesel.   elie wiesel  is a holocaust survivor. as a young, jewish boy he was taken from his home with his family by the nazis. he was taken because he is jewish.