The News & Views article “Venus: Express dispatches” by Andrew P. Ingersoll (Nature 450, 617–618; 2007) contained the erroneous statement that Venus's equator is warmer than the poles at altitudes above 65 km. It is colder.

There was an incorrect reference citation in the article “Microscopy: Elementary resolution” by Christian Colliex (Nature 450, 622–623; 2007). In the statement “The first experimental maps are now demonstrating the importance of refining descriptions of electron–matter interactions2,” the correct citation is not reference 2 but reference 12 (M. Bosman et al. Phys. Rev. Lett. 99, 086102; 2007).

In the article “Astronomy: Sloan at five” by Robert C. Kennicutt Jr (Nature 450, 488–489; 2007), we should clarify that the Sloan Digital Sky Survey was used only to select candidate stars for the spectroscopic observations that led to the discovery cited in reference 9 (W. R. Brown et al. Astrophys. J. 622, L33–L36; 2005).