As an aspiring astrophysicist, I know a thing or two about space. I also know that space is super cool and almost everyone I've ever talked to wants to learn more about it. This is a technique of studying I do with friends and family, as by teaching something that I know, if better cements that concept into my brain.
Fair warning: I don't know everything, and I will let you know if what you're asking is out of my grasp. But I'm pretty good, so fire away.
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Edited by CrazyLincoln: 4/5/2016 9:17:03 PMThe universe cannot be infinite. If you're able to observe that galaxies are moving away from each other at an expansional acceleration. If the universe is expanding we can extrapolate backward in time and say that the universe was once smaller. Infinite can't become smaller and larger. The space time field is finite or at least from what we can tell as of right now. So my question is, what shape is the universe and what is it like to be near the edge? What is it expanding into? Or perhaps that too human of a question to ask and my brain just in not wired to understand the complexity of how the universe works.