A common sub-theory of the Moon Landing Hoax claim holds that the Van Allen radiation belts surrounding Earth make a crewed lunar mission impossible — that astronauts would have received a lethal radiation dose before even reaching the Moon. The scientific record contradicts this. NASA engineered the Apollo trajectory to minimise belt exposure, reducing transit time to roughly one hour each way through the most intense zones. Total measured doses across the missions were well within established safe limits. The physicist who discovered the belts, James Van Allen, explicitly endorsed the Apollo missions and rejected the radiation-impossibility claim.