Making sense of the exoplanet zoo

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Science  12 Aug 2016:
Vol. 353, Issue 6300, pp. 644-645
DOI: 10.1126/science.aah4097

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The regions around stars on length and mass scales similar to that of our own solar system are relatively new to human exploration. In the two decades since “substellar objects,” things less massive than stars, were discovered orbiting stars other than the Sun, the single most certain statement about them has been “expect the unexpected.” On page 673 of this issue, Wagner et al. (1) reinforce that statement by reporting on the detection of a substellar object orbiting within a triplestar system.