Across
- 2. a celestial body resembling a small planet
- 7. agency responsible for the space program
- 9. a big rock in space heading towards the earth
- 11. when light encounter a discontinuity in the medium through which it is being transmitted
- 13. a rock falls from space to earth
- 14. the rate at which an entity such as a star completes cycles of rotations
- 16. piece of technology that is in space and orbits around earth in 90 minutes
- 21. a person that is exploring space
- 25. an eclipse in which the sun is obscured by the moon
- 26. the biggest star in the earths orbit
- 27. when moon moves into the earths shadow
- 28. before a full moon and after a new moon
Down
- 1. planets that are not sustainable to a human body
- 3. the universal force of attraction acting between all matter
- 4. a big ball of hot gases
- 5. a building or place given over to or equipped for observation of natural phenomena
- 6. is the earths only satellite
- 8. a moon, planet, or machine that orbits a planet or a star
- 10. investigation out of our orbit
- 11. a big airplane that goes into orbit to do space exploration
- 12. a phase of the moon almost finishing its cycle
- 15. the angle between the planet's rotational axis and its orbital axis
- 17. the shadow cast by the earth or moon over an area experiencing a partial eclipse
- 18. phase that is starting the moon phase
- 19. a big camera that can see all the way out of our orbit
- 20. the moon before getting smaller
- 22. cosmetic snow balls of frozen gases, rock, and dust that orbit the sun
- 23. a continuous area or expanse which is free
- 24. a ring that all our planets follow