Spatial correlation of OH Meinel and O2 infrared atmospheric nightglow emissions observed with VIRTIS-M on board Venus Express

► We describe simultaneous observations of the OH and the O2 Venus nightglow. ► Limb spectral images show that the two emissions are spatially well correlated. ► The intensity ratio of the two emissions is quite variable. ► We suggest that atomic oxygen is a common precursor to both emissions.