Universe

2. The second smallest planet in our solar system
6. The eighth planet from the Sun and is nearly four times the size of Earth
9. The third largest planet in the Solar System and seventh planet from the Sun
11. A system consisting of a large number of stars bound together by gravity
12. A natural satellite which orbits the Earth
13. The largest planet in our solar system
14. An object orbiting a star that is large enough to be rounded by its own gravity
15. The second closest planet to the Sun

1. The planet on which we live
3. A star and the biggest object in the Solar System
4. A huge, bright ball of burning gas that is held together by gravity
5. The closest planet to the Sun in the Solar System
7. When one celestial body blocks the light of the Sun from another
8. A celestial body made of ice and rock that orbits the Sun
10. The sixth planet from the Sun and features an impressive system of rings.