Grey aliens, are extraterrestial beings named for their skin color.
Around half of all reported alien encounters in the United States describe Grey aliens.
From various accounts Greys are described as small-bodied sexless beings with smooth grey-coloured skin, enlarged head and large black eyes.
Like the Saucer Men, the Greys are also keen to sudy the human race and are known to regularly abduct subjects for scientific research. Unlike the Saucer Men however, the Greys do tend to return our citizens unharmed, albeit a little shaken up.
Of all the beings from other worlds the Greys are the most likely to be a race that Humanity could strike some sort of accord with due to their high intelligence and and apparent moral code.