* Nebulae are the birthplace of stars: Nebulae are vast clouds of gas and dust where stars form. The process of star formation starts with the gravitational collapse of material within these clouds.

* Stars form within nebulae: As the cloud collapses, the material in the core heats up and eventually becomes hot and dense enough to initiate nuclear fusion. This is when a star is born.

* Stars remain within the nebula, at least initially: Newly formed stars remain embedded within the nebula for a period of time. They are still surrounded by the gas and dust that they formed from.

* Dispersal over time: Eventually, the radiation and stellar winds from the newly formed stars can clear away the remaining gas and dust, causing the nebula to disperse. This doesn't mean the star leaves the nebula – it means the nebula itself disappears.

In summary:

Stars form within nebulae and initially remain there. The nebula itself eventually disperses due to the star's activity, but the star remains in the region of space where it was born.