A new White House URL is out of this world (wide web). The eyebrow-raising domain name — “Aliens.gov” — has been added to the federal government’s official website registry, amplifying speculation that President Trump could be gearing up to pull back the curtain on what US intelligence agencies really know about whether we’re alone in the universe. Though the website is not yet live, the government has reserved the domain name for an as-yet-unknown purpose, registry records show. The revelation came after it was flagged by an automated tracker of new federal websites on Wednesday, almost exactly a month since...