Neil deGrasse Tyson explains the relatively recent phenomenon of UFO footage and if they in fact mean aliens are visiting us. We've been wondering whether we are alone in the Universe since the dawn of civilization. But it's only in recent years that this question has gotten much much more ...

What would we do as a civilization if we found evidence for intelligent alien life? How would we deal with it? Neil deGrasse Tyson explains why alien civilizations may be rare, even though life in general may be ubiquitous throughout the galaxy and beyond. Neil deGrasse Tyson also explains ...

American astrophysicist, planetary scientist, author, and science communicator Neil deGrasse Tyson explains where we can possibly find alien life. He mentions how science has advanced enough so that there are ways to tell if life exists elsewhere without ever having to visit distant alien worlds. ...