News of the WeekCosmology

Changing Constants Cause Controversy

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Science  24 Aug 2001:
Vol. 293, Issue 5534, pp. 1410-1411
DOI: 10.1126/science.293.5534.1410b

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The times, they are a-changin', and so are the fundamental constants of physics, an international group of physicists reports. After analyzing light from distant quasars, the team has concluded that the fine-structure constant, which is related to the speed of light, has shifted over time. The claim is extremely controversial, but scientists are taking it seriously--if skeptically.