Across
- 1. The distance that light travels in one year
- 3. All of space and everything in it
- 4. A large cloud of gas and dust containing an immense volume of a material
- 7. the blue-white core that is left behind a star and is made up of leftover energy
- 9. A contracting cloud of gas and dust with enough mass to form a star
Down
- 2. A stars actual brightness
- 5. A stars brightness seen from Earth
- 6. The explosion when a star blazes millions of times brighter
- 8. A group of single stars, star systems, star clusters, dust, and gas bound together by gravity