Space Crossword

3. Someone who goes into space.
6. This scientist uses a telescope.
9. Saturn has these.
10. The Sun is a ______.
13. The eighth planet.
14. This orbits the earth and sends messages to different places. It is important for navigation.
15. I use this to look at stars.
17. This is a branch of physics which studies how stars behave.
19. A big ball of rock in space. There are lots of these between Mars and Jupiter.
20. A large collection of stars.

1. The largest planet.
2. An astronaut must wear this.
4. This is a word for the gas which surrounds a planet.
5. This force keeps the Earth in orbit and makes things fall.
7. This orbits the Earth. Astronauts can live on it. There is a famous one named after Edwin Hubble.
8. The Earth ______ the sun.
9. This takes astronauts into space.
10. The name for the sun and all the planets together.
11. A word for everything that exists.
12. The name of our galaxy.
16. This orbits a planet. The Earth has one. Jupiter has lots.
18. A ball of ice and gas in space.