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Extrasolar planets

Water world larger than Earth

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The hunt for Earth-like worlds has taken a major step forward with the discovery of a planet only 2.7 times larger than Earth. Its mass and size are just as theorists would expect for a water-rich super-Earth.

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Figure 1: A water-rich super-Earth?

References

  1. Charbonneau, D. Nature 462, 891–894 (2009).

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  1. Geoffrey Marcy is in the Department of Astronomy, University of California at Berkeley, Berkeley, California 94720, USA. gmarcy@berkeley.edu,

    Geoffrey Marcy

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  1. Geoffrey Marcy
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Marcy, G. Water world larger than Earth. Nature 462, 853–854 (2009). https://doi.org/10.1038/462853a

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