Space Science Crossword

123456789101112
Across
  1. 1. Galaxy that will collide with the Milky Way
  2. 3. Planet in our solar system less dense than water
  3. 5. Hottest planet in our solar system, avg temp 450° C
  4. 6. Reverse of a black hole [2 Words]
  5. 8. The fastest planet in our solar system
  6. 11. First woman in space [2 Words]
  7. 12. Mercury, Venus, Earth, and Mars [2 Words]
Down
  1. 2. The highest mountain discovered (Mars) [2 word]
  2. 4. One of Saturn’s moons reflects 90% of the Sun’s light
  3. 7. Neptunes moon that has a retrograde orbit
  4. 9. A moon of Jupiter
  5. 10. Comet that won’t orbit past Earth again until 2061