Brian Castner is a former explosive ordnance disposal officer who served in the Air Force during the Iraq War.

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 ...

Here's how the world's largest non-nuclear bomb, the guided Massive Ordnance Penetrator, could go deep underground and shake up Iran's Fordow nuclear fuel-enrichment facility.