mattorb writes "The New York Times [free reg.req.] has an interesting article about a recent cosmological experiment whose results rather strongly imply a flat (omega equals 1) universe. Basically, the authors measured the scale of small variations in the cosmic microwave background, which yields strong constraints on allowed cosmologies. The abstract from the preprint (off LANL astro-ph) is here. Caveats: this is a preprint -- meaning that it hasn't been refereed yet. Also, questions are always raised about the precision of such "angular power spectrum" measurements -- who knows if this result will hold up. But it's an interesting thing to talk about."
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