Across
- 3. visitor to space for research
- 5. A group of stars gas and dust held together by gravity. Eg milky way
- 7. Closest planet to the sun
- 9. sixth planet from the sun
- 10. furthest proper planet from the sun
- 11. second closest planet to the sun
Down
- 1. fourth closest planet to the sun
- 2. an object that orbits
- 4. rocky dusty boulders in space
- 6. fifth planet from the sun
- 8. seventh planet from the sun
- 12. third closest planet to the sun