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Nature 430, 24-25 (1 July 2004) | doi:10.1038/430024a

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Extrasolar planets:  Too close for comfort

Gibor Basri1

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Three gas-giant planets have now been found in puzzlingly close orbits around their stars. These 'very hot Jupiters' raise questions about planet-finding methods and our understanding of planetary systems.

Before 1995, the Solar System was our only known example of a system of planets orbiting a central star. We had convinced ourselves that its layout — small inner rocky planets and large outer gaseous planets — made sense on general principles.

  1. Gibor Basri is in the Department of Astronomy, University of California, Berkeley, California 94720, USA.
    e-mail: Email: basri@astro.berkeley.edu

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