URL：https://images.theconversation.com/files/536155/original/file-20230706-19-6ho7f4.jpg?ixlib=rb-1.1.0&rect=0,889,4608,2304&q=45&auto=format&w=1356&h=668&fit=crop
掲載元：https://theconversation.com/what-is-most-likely-going-on-in-area-51-a-national-security-historian-explains-why-you-wont-find-aliens-there-203494
