Outer Space

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Across
  1. 2. the brightest star seen from the Northern Hemisphere
  2. 6. an anomaly in which no light can escape due to immense gravity pressure
  3. 8. the planet with rings visible to the naked eye
  4. 11. first US citizen in space
  5. 15. the Hunter
  6. 16. when one celestial body moves in front of another to cast a shadow onto a planet
  7. 17. this constellation's name means The Swan
  8. 18. a region of space made of gas and dust that serves as a nursery for stars
Down
  1. 1. one of Mars' moons, it means "panic" in Ancient Greek
  2. 3. the first rover to land on Mars
  3. 4. first dog in space
  4. 5. currently the largest man-made telescope in space
  5. 7. this planet was excommunicated
  6. 9. Jupiter's largest moon
  7. 10. the brightest star seen from the Southern Hemisphere
  8. 12. our nearesr galaxy
  9. 13. when a large star explodes
  10. 14. the Seven Sisters