In order to reach the moon, astronauts had to pass through what is known as the Van Allen radiation belt. The belt is held in place by Earth’s magnetic field and stays perpetually in the same place. The Apollo missions to the moon marked the first ever attempts to transport living humans through the belt. Conspiracy theorists contend that the sheer levels of radiation would have cooked the astronauts en route to the moon, despite the layers of aluminum coating the interior and exterior of the spaceship. NASA have countered this argument by emphasizing the short amount of time it took the astronauts to traverse the belt – meaning they received only very small doses of radiation.