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