Hello,
Very informative forum. I've learned much just browsing here. I get the feeling people here are friendly and willing to answer even simple and basic questions. So here goes:
After reading the "Big Bang Interpretation" thread, the question that comes to mind is "Into what is spacetime expanding?" I've been searching the web, but I can't find the answer. I've seen the balloon model of the expansion, but no answer to my question.
Klaus