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ARE WE ALONE
Are We Alone In The Universe? 13 Theories
Scientists estimate that there are over 100,000 intelligent alien civilizations in our galaxy alone -- but we've never heard anything from any of them. Here are 13 possible explanations for why.
Astronaut Leroy Chiao Opens Up About His 2005 UFO Sighting
ETs Exist, Renowned Scientists Say
Could We Survive An Alien Invasion From Outer Space?
Messages From Humanity to the Cosmos
A couple of weeks ago the Arecibo Observatory in Puerto Rico sent a special radio signal to outer space. The idea of communicating with other cosmic beings has long fascinated humans. This was not the first time we have tried to "converse" with our presumed galactic neighbors.
Are We Alone?
Author, "Idlewild Trilogy"
With so many places for life to exist, we may be closer to finding E.T. than ever before. Imagine what we'd glean from that encounter. How much more we'll come to know -- not only about life in the cosmos but also about ourselves.
WATCH: Morgan Freeman Talks Hostile Aliens On 'Through The Wormhole'
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