Might it be possible to create mirrors for space telescopes, using nothing but microscopic particles held in place by light? A study that exploits a technique called optical binding provides a step towards this goal.
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T. M. Grzegorczyk, J. Rohner & J.-M. Fournier
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McGloin, D. Optical trapping for space mirrors. Nature 506, 437–438 (2014). https://doi.org/10.1038/506437a
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DOI: https://doi.org/10.1038/506437a
