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New study gives dark energy a boost

Measurements provide further evidence for accelerating expansion of universe

5:27pm, March 16, 2011

New evidence bolsters the case that a bizarre form of energy is uniformly accelerating the expansion of the universe, refuting one of the alternative models developed by researchers who refuse to accept the idea.

The new study, which measures the present-day expansion of the universe to unprecedented accuracy, also suggests that the cosmos may be slightly older than previously calculated.

A team of astronomers used the Hubble Space Telescope’s new infrared camera to refine the Hubble constant — a
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