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Varying Fundamental Constants (4 of 7)

Caption: Aerial photo of the Effelsberg radio telescope. This image relates to a paper that appeared in the Dec. 13, 2012, issue of Science Express, published by AAAS. The paper, by Julija Bagdonaite at VU University Amsterdam in Amsterdam, The Netherlands, and colleagues was titled, "A Stringent Limit on a Drifting Proton-to-Electron Mass Ratio from Alcohol in the Early Universe."

Credit: [Image courtesy of MPI Bonn]

Usage Restrictions: Please cite the owner of the image when publishing. This image may be freely used by reporters as part of news coverage, with proper attribution. Non-reporters must contact Science for permission.

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