Across
- 2. U.S.'s space administration
- 5. __________pull - the force that keeps objects on earth
- 9. ___________ orbit - 22,300 miles above Earth
- 10. first to invent rocket technology
- 11. first man in space, from the Soviet Union
- 12. space shuttle that exploded seconds after liftoff (1986)
- 13. human ____________ - mathematicians who solve problems and make important calculations
Down
- 1. human computer - NASA supervisor
- 3. first man on the moon
- 4. first Soviet satellite
- 6. walked on the moon with Armstrong
- 7. objects in space that orbit around a larger object
- 8. result of no gravity