So if we assume we are not the only civilization in the galaxy, then at least a few others must have arisen billions of years ahead of us. But where are they?

So if we assume we are not the only civilization in the galaxy, then at least a few others must have arisen billions of years ahead of us. But where are they?

Brian Cox used to be the keyboard player for British pop band D:Ream in the early 1990s before deciding to pursue a career in science. In 2005, Brian Cox was appointed professor of particle physics at Manchester University, a position that he still holds today. Up to now he has written multiple books and hosted a number of TV shows on how the natural world works.
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