The News story ‘DNA tool kit goes live online’ (Nature 495, 150–151; 2013) wrongly located Randy Rettberg at the Massachusetts Institute of Technology. He is at the non-profit organization the iGEM Foundation in Cambridge, Massachusetts. The News story ‘Sticky problem snares wonder material’ (Nature 495, 152–153; 2013) said that the 2010 Nobel prize was awarded for graphene’s discovery, but it was for experiments involving graphene. And the World View ‘The unlikely wisdom of Chairman Mao’ (Nature 495, 143; 2013) wrongly stated that Mao Zedong was China’s premier.