Running into an alien on the bus would be strange — but it's almost equally strange that humankind has never encountered aliens. The universe is vast. Can we really be alone in it? (Cue "X-Files" theme song.) Think about it: What are the…
Running into an alien on the bus would be strange — but it's almost equally strange that humankind has never encountered aliens. The universe is vast. Can we really be alone in it? (Cue "X-Files" theme song.) Think about it: What …
