For more than a century, popular culture has trained us to picture extraterrestrials as bug-eyed, bipedal “little green men” ...

Astronomers thought they had seen the "first hints of life on an alien world" this year, but they disappeared under closer ...

This has been analyzed in greater depth elsewhere by smarter people than me, but whenever I read or watch sci-fi material this issue almost invariably crops up for me.<BR><BR>On the one hand, we have ...