NGC 7635, also known as the Bubble Nebula, is a striking emission nebula located in the constellation Cassiopeia. This cosmic beauty gets its name from the bubble-like structure created by the stellar wind from the massive, young, and luminous star at its center, SAO 20575. The intense radiation and powerful stellar winds from this central star interact with the surrounding interstellar medium, sculpting the nebula's delicate and intricate features.