Scientists recently detected something unusual entering our Solar System, sparking discussions about whether it is a comet or ...

The film has inspired online argument about many topics, but much of the debate has centered on the film’s science.

UFO boffs say we should be 'optimistic' about meeting extra terrestrial life after world leaders came out to say they believe ...

What would they think of us? It’s a question that can produce some, well, uncomfortable answers if you happen to be an ...

How would people react if an alien civilization actually made contact with us? Space.com talked to experts, who shared a ...