Are we alone in the Universe? With more than 100 billion galaxies in the observable universe and at least 500 billion planets in the Milky Way alone, don’t you think we should have found something by ...

An unusual long line of illuminous lights caught the attention of people across the UK ...

Sagan's team created the greatest puzzle of all time, which you can only solve if your species understands the basic nature of the universe.

Add Yahoo as a preferred source to see more of our stories on Google. TV has taught us many important lessons about aliens. They are either here to observe us, replace us, eat our cats, or gently ...