Our Solar System

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Across
  1. 3. the sun’s outermost atmosphere
  2. 4. amount of earth years equal to one year on Jupiter
  3. 5. amount of moons are currently in our solar system
  4. 8. the first person to travel into space
  5. 9. amount of stars that make up the Big Dipper
  6. 10. the planet that spins backwards
  7. 13. the study of the stars, planets, and galaxies
Down
  1. 1. the spacecraft that carried the first astronauts to the moon
  2. 2. the color of Mars’ sunset
  3. 3. the astronaut famous for having written his daughter’s initials on the moon
  4. 6. the amount of constellations in the galaxy
  5. 7. the planet that rotates on its side
  6. 11. the densest planet in our solar system
  7. 12. a large group of stars, dust, and gas