This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
W warhead diagram.svg Diagram of nuclear warhead showing its variation of the TellerUlam design On the top is an oblate primary while at the bottom is spherical secondary The outer casing blue is that of MIRV warhead reentry vehicle very schematic which would protect the warhead from the heat of the atmosphere after its launch into