Across
- 4. To move around something.
- 5. The planet we live on.
- 6. Another word for a trip.
- 9. A ball of rock, dust or gas that orbits a star.
Down
- 1. All of space, the galaxies and planets together make up this.
- 2. A vehicle that travels through space.
- 3. A person who goes into space.
- 7. A system of millions of stars.
- 8. The emptiness in between planets and stars.