Across
- 3. what is the hottest planet
- 5. what is the name of our galixy
- 6. what is the name of the black hole in the middle of our galixy
- 7. what is the fastest thing in the universe
- 8. how old is the universe
- 9. what is the thing in the univers with the most gravity
Down
- 1. what holds the solar system to gether
- 2. what is the biggest planet in the solar system
- 4. what is the biggest nown star
- 5. what is the red planet