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The Universe is Precisely 13.75 Billion Years Old

The Universe is 13.75 billion years old, primordial helium has been spotted for the first time and key evidence for the inflationary period immediately after the Big Bang has been found. But not all the new discoveries by NASA's Wilkinson Microwave Anisotropy Probe (WMAP) appear to fit cosmological theory. Previously, scientists using data from WMAP [...]

February 4, 2010
5:39 AM EST