domingo, 2 de janeiro de 2011

Why haven't we found aliens yet?

Why haven't we found aliens yet?
Posted on Thursday, 16 December, 2010 296 comments Submitted by: Still Waters

Image credit: DerrickT

Many people believe that we are not alone in the universe but if that's the case then where are all the aliens ?

Frank Drake has been pondering the possibility of extraterrestrial life for decades. "It's probably the most important question there is," he said. "What does it mean to be a human being? What is our future? Are there other creatures like us? What have they become? What can evolution produce? How far can it go?"

The question of whether or not we are alone in the galaxy is one that has fascinated everyone from mathematicians to conspiracy theorists. But, if extra-terrestrial life forms are abundant in the Universe - as some people believe - why have they not been in contact?

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