The Big Bang hypothesis is a logical conclusion based on some observations, most notably the observation that our universe is expanding - drifting apart - which suggests it was all gathered in one place at some point and then something happened to spread it apart .. and microwave background radiation measurable in space which is regarded as energy leftovers from that explosion so many billion years ago.
I can't remember reading about anything that I thought made the Big Bang seem very unfeasible - at least it explains why we observe the stuff mentioned above, but I'd be interested in learning more about alternative hypotheses and what their logical basis are or what problems they help explain.
edit :
Should add that the existence of big bang background radiation was predicted/hypothesized first as a conclusion based on the big bang theory, then observed and measured after.
Last edited by Guybrush; 05-20-2011 at 09:15 AM.
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