A quadrillion previously unnoticed small bodies beyond Neptune have been spotted as they dimmed X-rays from a distant source. Models of the dynamics of debris in the Solar System's suburbs must now be reworked.
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Cooray, A. Sifting through the debris. Nature 442, 640–641 (2006). https://doi.org/10.1038/442640a
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DOI: https://doi.org/10.1038/442640a
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