Space and Travel

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Across
  1. 2. What are the abbreviations for National Aeronautics and Space Administration?
  2. 5. What is it called when you make a few trips, getting closer each time until you know it is safe?
  3. 8. You need a lot of knowledge in what two subjects?
  4. 9. a device to make distant objects appear nearer and larger.
  5. 10. The path an object makes around another object under the force of gravity
  6. 12. The appearance of the moon at one point in its cycle.
  7. 13. people who study the universe beyond the Earth's atmosphere.
Down
  1. 1. a telescope using a lens to produce an image.
  2. 3. what is one place you can practice weightlessness?
  3. 4. How long does it take to become an astronaut?
  4. 6. a spacecraft that is designed to penetrate the surface.
  5. 7. the prefix for impossible is?
  6. 11. a telescope using a mirror to produce an image?
  7. 14. if a star looks like it is moving it is really what?