A star dies . When a star runs out of hydrogen fuel for nuclear fusion, its core begins to collapse. It enters the final stage of its life. At that point, the outer layers of the star expand and ...

Inside the life and death of stars : Short Wave This summer, ... We look at their life cycle. June 25, 2024 3:00 AM ET. By . Regina G. Barber , Hannah Chinn , Rebecca Ramirez ...