Across
- 1. Object moves in the opposite motion
- 4. Distance that light travels in one year
- 7. Dirty snowball of ice and rocky debris
- 9. Star ending its life in a huge explosion
- 10. Distinctive pattern of stars
Down
- 2. Vast collection of stars, gas, and dust
- 3. Moon’s shadow falls upon Earth
- 5. Greek for “circle of animals.”
- 6. Solid body orbiting the Sun
- 8. The time after sunset and before sunrise