More Life Forms

I heard on BBC about scientists finding another planet in space that is "the right size" and "the right temperature" to support life. I suppose this is exciting, but I was struck slightly by how closed-minded this seemed to me. Do you believe that life only exists as we know it? I enjoy boggling myself trying to imagine existences other than what I've ever known. Can life exist beyond time? The big bang is expanding outwards, right? In every direction? I have a theory that time is a sphere. Is the number line a sphere? Infinity is the same distance in every direction from zero. Is i's infinity the same as real numbers? Where do they meet? If you fly off into space forever, will you be able to break out ahead of the universe's expansion? Does that limit our speed capabilities? If you keep going in one direction, will you eventually come back to where you started? Are you upside-down? Is this reincarnation? Would we move in time, or just space? Can life of some sort survive without the universe? Without the sun? With intense gravity? Would they even come up with radio waves to try and contact us? There are so many questions to ask, and no answers. Perhaps we would know if we had the capability to travel beyond the edge of time.