Space Science Crossword

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Across
  1. 3. First woman in space [2 Words]
  2. 5. Hottest planet in our solar system, avg temp 450° C
  3. 7. Planet in our solar system less dense than water
  4. 8. one of Saturn’s moons reflects 90% of the Sun’s light
  5. 9. reverse of a black hole [2 Words]
  6. 10. Galaxy that will collide with the Milky Way
  7. 12. The highest mountain discovered (Mars) [2 word]
Down
  1. 1. Comet that won’t orbit past Earth again until 2061
  2. 2. Neptunes moon that has a retrograde orbit
  3. 4. Mercury, Venus, Earth, and Mars [2 Words]
  4. 6. the fastest planet in our solar system
  5. 11. A moon of Jupiter