Across
- 4. The star at the center of our solar system
- 5. Our galaxy filled with billions of stars
- 6. A huge colorful cloud of gas and dust
- 8. Object that orbits a planet or moon
- 10. A big ball in space that orbits a star
- 11. Vehicle that launches into space
- 12. Earth's glowing round friend at night
- 13. A home for astronauts orbiting Earth
- 14. Rock floating in space, smaller than a planet
- 16. Giant collection of stars and planets
- 18. Icy space rock with a glowing tail
Down
- 1. Sun and all the planets that orbit it
- 2. Mysterious space object with super strong gravity
- 3. The path a planet takes around something bigger
- 5. A rock that streaks across the sky
- 7. Person who travels and works in space
- 9. Tool to see far-away stars and planets
- 13. Bright ball of gas shining in the night sky
- 15. When the sun or moon is hidden
- 17. Robot explorer that travels on planets