Across
- 2. The leftover body of mass after a sun-sized star dies.
- 5. To get bigger in volume, like a balloon.
- 7. The leftover body of mass after a star three times the size of our Sun dies.
- 10. A massive explosion, emitting energy so far and wide, it can kickstart the birth of new stars.
- 14. The warming effect of mass as it shrinks tighter due to gravity.
- 17. The path a body of mass takes around a larger body of mass, usually elliptical.
- 18. The balancing of gravitational forces and fusion expansion leading to a stable star.
- 19. Plentiful and available in large quantities.
Down
- 1. Scattered pieces of waste or remains.
- 3. Pertaining to the shape of an ellipse (egg-shaped).
- 4. The second smallest element and second-most abundant element in the Universe.
- 6. A body orbiting around a planet.
- 8. Debris left over from the creation of a star system.
- 9. The smallest and most abundant element in the Universe.
- 11. A body of mass moving in an elliptical orbit around a star.
- 12. The most accepted model of explanation of how star systems are born.
- 13. The leftover body of mass after a star twice the size of our Sun dies.
- 15. A baby star, not yet fusing elements in its core.
- 16. A star that is fusing Hydrogen into Helium in its core.
