Seven small planets whose surfaces could harbour liquid water have been spotted around a nearby dwarf star. If such a configuration is common in planetary systems, our Galaxy could be teeming with Earth-like planets. See Letter p.456
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References
Kumar, S. S. Astrophys. J. 137, 1121–1125 (1963).
Gillon, M. et al. Nature 533, 221–224 (2016).
Gillon, M. et al. Nature 542, 456–460 (2017).
Goldreich, P. & Tremaine, S. Astrophys. J. 241, 425–441 (1980).
Berta, Z. K., Irwin, J. & Charbonneau, D. Astrophys. J. 775, 91 (2013).
Dressing, C. D. & Charbonneau, D. Astrophys. J. 807, 45 (2015).
Sullivan, P. W. et al. Astrophys. J. 809, 77 (2015).
de Wit, J. et al. Nature 537, 69–72 (2016).
Leconte, J. et al. Astron. Astrophys. 554, A69 (2013).
Laughlin, G., Bodenheimer, P. & Adams, F. C. Astrophys J. 482, 420–432 (1997).
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Snellen, I. Earth's seven sisters. Nature 542, 421–422 (2017). https://doi.org/10.1038/542421a
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DOI: https://doi.org/10.1038/542421a
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