The probability that giant-planet-like signals detected by the Kepler spacecraft are not from planets is higher than expected. The result underscores the importance of making follow-up observations to confirm the nature of the signals.
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Morton, T. D. Preprint at http://arxiv.org/abs/1206.1568 (2012).
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Cameron, A. Astrophysical false positives. Nature 492, 48–49 (2012). https://doi.org/10.1038/492048a
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