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Geometry of the Universe

A neat way of measuring the geometry of the Universe offers a new test of the standard cosmological model. It probes, among other things, the elusive dark energy thought to be driving the Universe's expansion. See Letter p.539

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Figure 1: The principle of Marinoni and Buzzi's cosmological technique1.


  1. Marinoni, C. & Buzzi, A. Nature 468, 539–541 (2010).

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  2. Alcock, C. & Paczyński, B. Nature 281, 358–359 (1979).

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  3. Davis, M. et al. Astrophys. J. 660, L1–L4 (2007).

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Heavens, A. Geometry of the Universe. Nature 468, 511–512 (2010).

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