Across
- 3. - Orbits a star, like Earth.
- 5. - Known as the Red Planet.
- 7. - A planet that spins on its side.
- 9. - A person who explores space.
- 11. - The universe as a whole.
- 13. - When the moon blocks the Sun's light.
- 15. - Vehicle used for space travel.
Down
- 1. - Cloud of gas and dust in space.
- 2. - Second planet from the Sun.
- 4. - A huge system of stars, like the Milky Way.
- 6. - Planet with stunning rings.
- 8. - Space rock with a tail of light.
- 10. - Earth's natural satellite.
- 12. - The path a planet takes around the Sun.
- 14. - A glowing ball of gas in the sky.