Across
- 2. Closest steller black hole
- 4. The coldest planet in our solar system (not counting Pluto)
- 5. Comet The most famous comet.
- 8. belt A region of the solar system beyond the orbit of Neptune,
- 10. The smallest of the four inner moons of Jupiter
- 11. Closest star system to our sun
- 14. The second hotest planet
- 15. Also known as the red planet
- 17. closest planet to the sun
- 18. A system of millions or billions of stars,
- 19. Takes approximately 365 days to rotate around the sun
Down
- 1. so fast that it would go the Moon and back in a day,
- 3. Sent into orbit in space
- 6. The largest planet
- 7. Jemison She was selected for the astronaut program in June 1987
- 9. Also known as the ice giant
- 12. All existing matter and space considered as a whole; the cosmos
- 13. Sixth planet away from the sun
- 16. Dwarf planet