Across
- 3. A round pit on the moon’s surface
- 4. A number representing the apparent brightness of a celestial body
- 7. A scientist who studies the stars and other object in the sky
- 8. The distance that light travels in one year
- 11. The understanding of the nature of the universe
- 13. The partial or total blocking of one object by another
- 14. Largest Planet, 5th planet from the sun
- 15. The galaxy that contains our Solar System
Down
- 1. The presumed final stage of a white dwarf
- 2. An object in space whose gravity is so stong not even light can escape
- 5. Stars are always constantly moving even though they seem to either be still or move because of Earth’s motion
- 6. third planet from the sun
- 9. A very large star, much larger than the sun
- 10. A natural object that orbits a planet
- 12. Smallest planet, closest to the sun