In the News & Views 'Probing superconductivity at the nanoscale' (Nature Nanotech. 4, 142; 2009), the penultimate sentence should have read: 'red corresponds to a high conductance and a small gap.' Corrected in the HTML and PDF versions, after print: 7 October 2009.
The online version of the original article can be found at 10.1038/nnano.2009.23
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Correction: Probing superconductivity at the nanoscale. Nature Nanotech 4, 626 (2009). https://doi.org/10.1038/nnano.2009.306