Are We Alone in The Galaxy?

Are we alone?  This is is one of the most intriguing questions in all of science… There are about 300 million planets in our galaxy alone that might support life as we know it.

By the sheer number of these planets it can be argued that we are most likely not unique in the galaxy.

Brian Cox thinks that there must be intelligent civilizations out there, although they might be extremely rare when we consider the rise of intelligent life here on Earth.

[Youtube]