Across
- 4. The rock mass that orbits earth
- 5. A vehicle that can travel back and forth through space
- 8. Someone who travels to space
Down
- 1. The dwarf planet
- 2. A robot designed to land on a planet and analyze the data, then send the data back to earth
- 3. The international space station
- 6. What makes up the majority of rocket fuel
- 7. What is at the center of our solar system
- 9. A burning cloud of gasses that can be seen from earth