Here’s how a nuclear bomb actually works. The B61 and the B83 nuclear bombs currently in the United States’ arsenal are thermonuclear, or hydrogen bombs, and quite different than the fission weapons ...

Example nuclear reactions include radioactive decay, fission, the break-up of a nucleus, and fusion, the merging of nuclei.

Experimental nuclear physics is the practical investigation of the processes that occur at the heart of an atom. This includes building a better fundamental understanding of fusion and fission ...

Israel strikes Iran’s nuclear sites and kills top generals. Iran retaliates with missile barrages. By The Associated Press Updated June 13, 2025, 11:54 p.m.