Across
- 3. a gigantic explosion that occurs near the end of the life of some stars
- 5. occurs when the moon blocks the sun's light
- 8. the distance light travels in one year
- 10. a cloud of gas and dust in which new stars form
- 11. a huge system of stars, dust and gas held together by gravity
Down
- 1. occurs when Earth casts a shadow on the moon
- 2. a group of stars that forms a pattern
- 4. when parts of the sun's choromosphere erupt like a volcano, spewing a lot of energy into outer space
- 6. a point in space that has such a strong force of gravity that nothing within a certain distance of it can escape, not even light
- 7. gigantic ball of very hot gasses that give off electromagnetic radiation
- 9. a fiery ball of hot gasses with no hard surfaces, in the center of our Solar System