SETI Institute on Instagram: "#PPOD: Horsehead Nebula in Infrared Here's a view of the famous Horsehead Nebula (Barnard 33), located 1,375 light-years away under the first star in Orion's belt. This is
![The Horsehead Nebula upper ridge illuminated by Sigma Orionis. Science astronomy concept wallpaper. Elements of this image were furnished by NASA, ESA Stock Photo - Alamy The Horsehead Nebula upper ridge illuminated by Sigma Orionis. Science astronomy concept wallpaper. Elements of this image were furnished by NASA, ESA Stock Photo - Alamy](https://c8.alamy.com/comp/2B541K8/the-horsehead-nebula-upper-ridge-illuminated-by-sigma-orionis-science-astronomy-concept-wallpaper-elements-of-this-image-were-furnished-by-nasa-esa-2B541K8.jpg)
The Horsehead Nebula upper ridge illuminated by Sigma Orionis. Science astronomy concept wallpaper. Elements of this image were furnished by NASA, ESA Stock Photo - Alamy
![File:Horsehead Nebula, mostly starless, Hubble Palette (Explored) - Flickr - john.purvis.jpg - Wikimedia Commons File:Horsehead Nebula, mostly starless, Hubble Palette (Explored) - Flickr - john.purvis.jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/1/16/Horsehead_Nebula%2C_mostly_starless%2C_Hubble_Palette_%28Explored%29_-_Flickr_-_john.purvis.jpg)