ET

[bobby]

Do aliens exist and have they visited Earth? There must be life out there, when will we learn the truth?

[incitatus]

total lack of evidence. either its all been covered up or it didnt exist in the first place....

[andy hughes]

I think the film 'Close Encounters' has the right idea - if the world's governments contacted alien life, they would keep it from the people and look for a military / commercial angle. I prefer to think that alien visitors have no visible form at all, and move among us at will. It seems unlikely, though possible that visitors have come here. Maybe they communicate by smell, or colours, or are bacteria-sized, or maybe they took a look at a Robert Kilroy-Silk show and decided to try elsewhere - the possibilities are endless. If you do find out, tell us won't you?

[JohnPPotts]

There probably is life "out there", given the billions of stars out there (and quite a high proportion of these seem to have planets). But as for whether aliens have ever visited, almost certainly not - unless our scientific theories are completely wrong, the energy requirements are simply astronomical. And if they had, they almost certainly wouldn't swoop down to pick up lone nutters in Western America and sod off again.

[p.harrison]

I think my ex-girlfriend was an alien, half the time she talked a different language and she had no logic to her behavior. Some say that aliens are superior intelligent life forms but my ex-missus was far from intelligent.