While lxskllr brings up a valid point, I am always impressed with the discussions on these topics in ATOT. There are some very intelligent and logical people here, that is why I like to ask in this forum. I believe that something can be learned here, at least for myself, and that makes it a valid topic of discussion for me.
Let me throw out some thoughts and hopefully gain more clarity on the subject...
I feel it is safe to say that most atheists are people of science. I would also think that most people of science would find the probability of life outside of our domain highly likely. Who is to say that we aren't some experiment or creation of a superior (yet natural) being? And would that qualify as a sort of deity, or at least higher power?
What of the theories of alternate dimensions, such as the string theory or M-theory? If we are only living in 3 of these dimensions, who's to say what the others might contain? Any thoughts?
Lastly, do most atheists believe in eternity? I'm not talking about 'eternal life' in the religious sense, but more in the sense that nothing ever really truly dies, it is just recycled and continues forever. In my mind at least, 'eternity' and 'forever' are not comprehensible (too large to grasp) and only exist as a concept, but a possibility.