News of the WeekCosmology

Firming Up the Case for a Flat Cosmos

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Science  17 Sep 1999:
Vol. 285, Issue 5435, pp. 1831
DOI: 10.1126/science.285.5435.1831a

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Summary

A long-sought hump in measurements of the universe's faint background radiation was no more than a hint in earlier observations, but now a telescope high in the Chilean Andes has opened a clear view of it. The discovery, which will be reported in the 10 October Astrophysical Journal Letters, confirms a long-standing prediction about the universe's total mass and energy density and hints that a major part of the total may be a mysterious form of energy in empty space.

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