Last week the US Cybersecurity and Infrastructure Security Agency registered the alien.gov and aliens.gov web domains, setting off speculation as to whether the president was going to make good on his promise to publish documents related to extraterrestrials. In case you missed that (there have been a couple of other things going on), Trump announced in February that he’d asked “the Secretary of War, and other relevant Departments and Agencies, to begin the process of identifying and releasing Government files related to alien and extraterrestrial life … and unidentified flying objects (UFOs)”.