Massive Stars live shorter lives. Low mass stars live longest. 1.Gravity contracts the Hydrogen gas 2. Gas Spins 3. Gas Heats 4. Protostar Stage 5. Fusion.
StarsStars. What is a star? The objects that heat and light the planets in a system A star is a ball of plasma held together by its own gravity –Nuclear.
Chapter 16 Star Birth. 16.1 Stellar Nurseries Our goals for learning Where do stars form? Why do stars form?
Life Cycle of Stars. Life Cycle of Stars The path a star takes over its lifetime depends solely on its MASS!!
