Across
- 1. second stage of a star
- 7. the can be up to 100,000 kelvins
- 8. they make up around 90% of the universe's stellar population
Down
- 2. they only rotate five kilometers per second
- 3. nothing can escape, not even light
- 4. the universe is still to young to have created any of these
- 5. they have giant planets
- 6. they can spin as fast as blender blades
- 9. the first stage of a star
- 10. they are the colossal explosion of a star