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Science Our universe was slower to warm up than previously thought, say scientists

Black holes near stars took longer to heat the cosmos than scientists once thought, new research finds. 

By Nola Taylor ReddSPACE.com Contributor / February 6, 2014

ESA, NASA, Felix Mirabel

Black holes acting as companions to early stars may have taken more time to raise the temperature of the ancient universe than previously thought, a new study suggests.