One of the mysteries of space has been perplexing scientists for the last 40 years. Back in 1977, astronomer Jerry Ehman received such a strong radio signal coming in from the heavens, he wrote the ...

Add Yahoo as a preferred source to see more of our stories on Google. April 26 has been designated Alien Day. The date is a reference to the moon on which Aliens is ...

In 1977, the alien-hunting astronomer Jerry Ehman spotted a signal from deep space which was so unusual that he scribbled the word "Wow" in the margin of his notebook. Now an American scientist has ...

On disc one, you can choose to see the original theatrical version or the new, slightly longer, director's cut. Extra material to look out for includes the crew listening to an alien transmission and ...