Across
- 7. A hypothetical form of matter that is invisible and undetectable
- 9. A natural satellite that orbits a planet
- 10. A large collection of stars, interstellar gas and dust, and star clusters
- 12. The spiral galaxy that contains our solar system
- 13. The star in which earth orbits
- 14. The heated remnant of a star thats exhausted its nuclear fuel
- 15. A region of space-time with a strong gravitational pull that not even light can escape
Down
- 1. A powerful, luminous explosion of a star
- 2. The theory of how the galaxy was created
- 3. A celestial body that orbits the sun
- 4. A small, cool, and dim star, the most common in the Milky Way
- 5. A hot, luminous star with blue or white light
- 6. A collection of eight planets and their moons that orbit the sun
- 8. A large star with high luminosity and low temperature
- 11. A rocky celestial body that orbits the sun