News of the WeekAstrophysics

New Model Shows Sun Was a Hot Young Star

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Science  21 Sep 2001:
Vol. 293, Issue 5538, pp. 2188-2189
DOI: 10.1126/science.293.5538.2188

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Elaborate computer simulations indicate that our infant planet's main light source--the young sun--was much hotter and brighter than astronomers have thought. If they hold up, the new results could change the way scientists think about other young stars and Earth's early climate.