Across
- 2. Core of a red giant left behind when outer layers become a planetary nebula
- 6. what our sun will change into in around 5 billion years
- 7. Huge explosion when a Red Supergiant runs out of fuel
- 8. Colour of the hottest stars
- 9. Before fusion starts, the star is known as a ....
- 11. The very largest mass stars will end life as a .....
Down
- 1. what a large mass star will become when it runs out of Hydrogen
- 3. Stable Adult star, fusing Hydrogen into Helium
- 4. Force that pulls a nebula together to start forming a star
- 5. Cloud of dust and gas that stars are made from
- 10. Colour of the coolest stars