A nebula (from Latin: "mist"; pl. nebulae or nebulæ, with ligature or nebulas) is an interstellar cloud of dust, hydrogen gas and plasma. It is the first stage of a star's cycle. These are my tries in making some, following the inspiration and tutorials of Ali aka :devmoonchilde-stock:. They have been made using Apophysis, Universe, and Photoshop. They are available as stock. See the images to read the comments about rules :)