Mikko Tuomi | This image of the Horsehead # Nebula from # JWST near-infrared camera focuses on a portion of the horse’s “mane” that is about 0.8 light-years in width. The ethereal clouds that appear blue at the bottom of the image are dominated by cold, molecular hydrogen. Red-colored wisps extending above the main nebula represent mainly atomic hydrogen gas. # astronomy # astrophotography
