"According to highly precise observations of microwave radiation observed all over the cosmos, WMAP scientists now have the best estimate yet on the age of the Universe: 13.73 billion years, plus or minus 120 million years (that's an error margin of only 0.87%… not bad really…)."
- ver em Universe Today » 13.73 Billion Years - The Most Precise Measurement of the Age of the Universe Yet
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