Across
- 2. takes 165 years to orbit the sun
- 4. a small rocky body orbiting the sun
- 7. a celestial object consisting of a nucleus of ice and dust and, when near the sun, a ‘tail’ of gas and dust particles pointing away from the sun
- 10. a group of stars forming a pattern
- 12. second biggest planet
- 13. the red planet
- 15. started on October 1, 1958, as a part of the United States government
- 16. the blue planet
Down
- 1. planet on its side with vertical rings
- 3. first man on moon
- 5. pull light from sun
- 6. 19 minutes after the first on moon
- 8. smallest planet without moons
- 9. closest to earth
- 11. a small body of matter from outer space that enters the earth's atmosphere, becoming incandescent as a result of friction and appearing as a streak of light
- 13. spiral galaxy
- 14. center of milky way galaxy