Across
- 4. very first Indian in space
- 6. an area between Mars and Jupiter where most asteroids are found
- 9. a giant ball of gas that radiates
- 10. the lightest element that composes 75 percent of the sun
- 11. path of an object moving around another object
- 13. number of planets in solar system
- 16. a satellite of the earth
- 18. first man on the moon
- 19. large body that orbits a star
- 22. the gravitational pull on planetary objects from nearby planets and moons
- 23. a physical force of nature that causes two objects to attack each other
- 24. visible stars in a pattern
Down
- 1. electromagnetic radiation that the earths atmosphere blocks
- 2. the red planet
- 3. name of first animal that went into space
- 5. the galaxy we live in
- 7. the distance travelled by light in a year
- 8. the study of space
- 12. instrument used to see large objects in place
- 14. a small particle of rock that burns in earths atmosphere
- 15. something that doesn’t originate on earth
- 17. explosion that lead to creation of the universe
- 20. the largest planet
- 21. a large system of 100 billion stars