Universe 1

4. A scientist who studies space.
7. The galaxy containing our Sun and Solar System.
9. A rocky inner planet, fourth from the Sun in the Solar System.
10. A collection of stars that make a pattern in the sky.
17. Lumps of rock orbiting the Sun left over from when the Solar System formed.
18. A body in space that gives out its own light.
19. A rocky inner planet, closest to the Sun in the Solar System.

1. The period on one section of the Earth or other planet when it is facing away from the Sun.
2. A number of stars and the solar systems around them grouped together.
3. A rocky inner planet, second from the Sun in our Solar System.
5. Dust particles frozen in ice that orbit the Sun.
6. not a planet anymore!
8. planet number 7.
11. The path taken by one body in space around another.
12. the planet with the most rings.
13. A rocky inner planet, third from the Sun in the Solar System.
14. the other blue planet.
15. the largest planet
16. The time it takes a planet to make one full spin on its axis.