Professor Karl Carlton known by other scientists as the Nutty Professor claims that cosmic rays from outer space are the main cause that triggers cancer.
The Professor explained to us that every second that passes thousands of cosmic rays pass through your body and that of every other living organism on the planet.
The Van Allen Radiation belt protects us to a large extent from cosmic rays without it we would all be dead. That is why there are still many people that believe man has never gone to the moon as radiation without the protection of the Van Allen Radiation Belt would kill you.
Even taking transatlantic flights can increase your chances of getting cancer so beware.