Across
- 2. The path one object takes around another.
- 6. An object from outer space falls (eg. a rock) and lands on earth.
- 8. Sometimes known as the "Red Planet"
- 10. Group of stars, dust and gas held together by gravity.
- 11. An object that shines through the release of energy.
- 12. Our galaxy.
- 13. The second largest planet, sixth from the sun.
Down
- 1. The imaginary straight line on which an object rotates.
- 3. Mode of transport from Earth to outer space.
- 4. When our view of one object in the sky is blocked by another.
- 5. The system of planets and other objects orbiting our sun.
- 7. Force exerted from the moon on to earth.
- 9. The amount of time it takes for the earth to spin once on its axis.