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Though the General Theory of Relativity has produced a generous amount of verified predictions, its application to the universe at large has also generated a set of puzzles which, coupled to recent observations, are the topics of intense research. Whether there is a cosmological constant, whether the universe is filled with dark matter and the nature of this stuff and whether our current models of the universe are accurate enough to understand physics to the very earliest of times are issues currently addressed by researchers. The near future will provide more puzzles and some answers leading us, we hope, to a better understanding of the universe, our home.

Jose Wudka