Across
- 2. space probe launched in 1977
- 5. start of the universe
- 9. A dying star
- 11. First person in space
- 12. International Space station acronym
- 14. Seventh planet from the sun
- 15. dwarf planet
Down
- 1. Also called "the dog star"
- 3. constellation also called "the hunter"
- 4. First Canadian Astronaut to walk in space
- 6. Start of a star
- 7. Astronomy name of the sun
- 8. planet which orbits the sun the wrong way
- 10. Largest moon of Saturn
- 13. small solar system object with a oval orbit