News of the WeekCosmology

Cosmic Ripples Confirm Universe Speeding Up

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Science  29 Mar 2002:
Vol. 295, Issue 5564, pp. 2341
DOI: 10.1126/science.295.5564.2341b

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Four years ago, cosmologists announced that the universe appears to be expanding at ever-increasing speed--and that a mysterious antigravity force must be doing the pushing. Now an international consortium of astronomers has confirmed the original finding by taking a completely different approach. The new research adds to the mounting evidence that ordinary matter alone cannot mold space into the geometry that cosmologists believe it has. Instead, many now believe, "dark energy" must be added to the mix.