1. THERE'S ALREADY A BOMB, A NUCLEAR WARHEAD.

2. The production version, designated Kh-20M, featured an improved nuclear warhead.

3. For example, on an ICBM, a nuclear warhead would first be exposed to a strong acceleration, and then a period of free fall.

4. The missile can be fitted with either a command-detonated 15 kt nuclear warhead or a 295 kg (650 lb) conventional HE warhead.

5. A nuclear weapon (also called an atom bomb, nuke, Atomic bomb, nuclear warhead, A-bomb, or nuclear bomb) is an explosive device that derives its destructive force from nuclear reactions, either fission (fission bomb) or from a combination of fission and fusion reactions (thermonuclear bomb).Both bomb types release large quantities of energy from relatively small amounts of matter.