Across
- 1. The ___ Nebula is the coldest place in the universe.
- 7. The Oort cloud is located just beyond which celestial body?
- 9. Which planet rotates on its side?
- 11. What is the study of the stars, planets, and galaxies?
- 14. Which are the most common types of galaxies in the universe?
- 15. Which star is the Alpha Ursa Minoris?
- 17. Which constellation is shaped like a winged horse?
- 19. Which constellation represents a hunter and weapons?
- 20. Which is the densest planet in our solar system?
- 21. Which planet has the most moons?
Down
- 1. What color is Mars’ sunset?
- 2. Who described Saturn’s rings as the “ears of a teacup?”
- 3. Which is the smallest planet within our solar system?
- 4. Which is the oldest planet in our solar system?
- 5. Which astronaut is famous for having written his daughter’s initials on the moon?
- 6. How long does it take the sun’s rays to reach Earth?
- 8. Who was the first person to travel into space?
- 10. What do you call a large group of stars, dust, and gas?
- 12. Which planet has supersonic winds?
- 13. Phobos and Deimos are the Moons of which planet?
- 16. Which constellation holds the hottest place in the universe?
- 18. Which planet spins backward relative to the others?