Across
- 5. at the surface of a star increases when it collapses.
- 7. dwarf cools for eons until it is too cold to emit light.
- 8. is a huge assemblage of stars, interstellar gas, and dust.
- 9. stars become Super Giants
- 10. stage of more massive stars is collapse and then an explosion called a supernova.
Down
- 1. galaxies form stars at a very fast rate.
- 2. are groups of stars that have regularly recognized positions.
- 3. between materials in the cloud pulled it inward.
- 4. becomes a star when fusion in its core occurs.
- 6. could deduce the distance of a star from Earth by comparing its luminosity and brightness.