Across
- 2. As a massive star collapses its sends out a giant shockwave that can create new atomic nuclei
- 5. A giant burning ball of hot gas mainly hydrogen
- 6. An area with such immense gravity that nothing can escape it not even light
Down
- 1. AN area that consists of a star and everything that orbits around it
- 3. All existing matter and space in a whole
- 4. A huge collection of gas and dust with many stars and solar systems