Correction: Planetary science: Penitent Pluto

Nature Astronomy 1, 0016 (2017); published 4 January 2017; corrected 13 January 2017. In the version of this News and Views originally published the sentence giving the penitent formation timescale was incorrect and should have read: ‘Moreover, in order to explain the current height and tri-modal orientation, they infer that these features must be a few tens of millions of years old.