when Soviets explode first atomic bomb
18th May1998, but its not atomic bomb (its nuclear bomb)
1964
heroshima
hireshima
1945
explode
no
Nagasaki
The USSR tested its first nuclear weapon in 1949.
I don't think anyone has seen an atomic bomb and lived,but so say about 3 to 4 days.
The first was dropped on Hiroshima on August 6, 1945. The second one followed on Nagasaki 3 days later.