13899552 - A framing of the major areas of bright and dark nebulosity in Cygnus and Cepheus, showing pink emission nebulas contrasting with dark dusty regions in the Cygnus and into the Perseus arms of the Milky Way. Cepheus is at upper left; northern Cygnus is at right, with the bright Cygnus starcloud right of centre. The reddening (or yellowing) effects of interstellar dust in the spiral arms of the Milky Way is apparent.13899674 - The Sun setting into a pall of forest fire smoke over Alberta from fires in B.C. and elsewhere, on August 17, 2018. This shows the dimming and reddening of the Sun as it set, with it disappearing from view long before it reached the horizon.13899163 - The Sun setting into a pall of forest fire smoke over Alberta from fires in B.C. and elsewhere, on August 17, 2018. This shows the dimming and reddening of the Sun as it set, with it disappearing from view long before it reached the horizon.13899801 - This is the field in Vulpecula the Fox that contains the famous planetary nebula, the Dumbbell Nebula aka Messier 27, at left, but also the faint emission nebulas NGC 6820 at right and Sharpless 2-88 above it. The small star cluster below centre is NGC 6830. A small star cluster, NGC 6823, lies embedded in NGC 6820. The field is yellowed by the interstellar dust reddening distant objects.71349797 - A Manggarai women eating betel nut which causes reddening of the tongue and teeth, western Flores, Indonesia, Southeast Asia, Asia71105868 - 'Underwater museum ''Reddening leaders'', Felix Edmundovich Dzerzhinsky sculpture. Cape Tarhankut, Tarhan Qut, Black sea, Crimea, Ukraine, Eastern Europe.'
