Star-forming regions are areas in space where new stars are born. These regions are often found within large clouds of gas and dust, known as molecular clouds. The dense parts of these clouds collapse under their own gravity, leading to the formation of stars. In these regions, the temperature and pressure increase as the material gathers, eventually igniting nuclear fusion in the core of the forming star. Nebulae are often associated with star-forming regions, as they can be the visible manifestations of these clouds. Over time, the newly formed stars can influence their surroundings, creating new structures in the galaxy.