Across
- 5. an act of launching something
- 6. an envelope of gas surrounding the earth
- 8. doctor
- 9. a US space laboratory
- 11. brightening observe over he sun surface
- 14. alien
- 16. chemical element with symbols
- 17. commonly defined as the totality of existence
- 19. a force that attracts you the earth
Down
- 1. an illusion of incredible speed
- 2. a gravitational field so intense that no matter or radiation can escape
- 3. where trash goes
- 4. an important asingment
- 7. an unpleasant emotion
- 8. a special kind of tablet that gives vitamins and calcium
- 10. tooth pain
- 12. extravehicular activity
- 13. blood going to the upeer part of your body
- 15. astronaut out of space protection
- 18. hard upper torso