Across
- 4. a group of stars that forms a pattern in the sky
- 5. a bright explosion produced by the dying of a supergiant star
Down
- 1. a large ball of gas that produces radiation
- 2. a very large group of stars
- 3. the constellation in the northern hemisphere where the andromeda galaxy is located
- 6. everything that exists
- 7. a large cloud of dust with vast quantities of hydrogen where stars originate