I've wondered as to what exactly would happen if every nuke in the world was exploded at the same time. (Obviously, we'd all die) Consider these scenarios: 1a. All nukes gathered in the Sahara desert and detonated 1b. Detonated at south pole 1c. Detonated in southwest US 2a. All nukes evenly placed across Earth's surface, both land and ocean 2b. Nukes placed over land 2c. Nukes placed over ocean 3. Nukes detonated at some ocean floor location in Pacific 4. Nukes detonated at one point on the Moon I'm randomly guessing that Russia and the US each have 10,000 nukes, and the other countries have around 3,000-5,000 combined, but we can't really know because it is secret information. Would the mega-explosion be enough to alter Earth's rotation/orbit? Or in the fourth scenario, would it alter the Moon's orbit? Just a question out of curiosity.