The IR emission from the “pillars” located south-east of W5-E. a) Colour composite image showing in red the 250 μm cold dust emission and in turquoise the 8.0 μm PAH emission. b) Identification of a few pillars on the grey-scale Herschel 250 μm image. c), d) Details of the pillars: the grey-scale underlying Spitzer 24 μm image shows Class I/II sources lying at the tip of the pillars (from KOE08). North is up and east is left.