It is 40 years since the drama of the Apollo 13 mission turned an aborted mission to the moon from potential disaster into a celebrated recovery.

But doubts still linger about the moon landings. 9/11 and Kennedy aside, no event in world history has generated quite so many conspiracy theories than the Apollo moon landings. Do they stand up? Here are the best reasons why it couldn’t have happened, and the rebuttals. Of course, you may disagree.

Click on the image to launch our guide