High-mass stars often pair up to form binary systems. Observations reveal that the stars in such systems are born farther apart than was formerly thought, casting fresh light on an enduring debate about star formation.
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Geller, A. Stellar siblings grow closer with age. Nature 547, 41–42 (2017). https://doi.org/10.1038/nature23092
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DOI: https://doi.org/10.1038/nature23092