Astronomy

2. A large system of stars in outer space.
6. The area outside the earth’s atmosphere including planets and stars
8. Have an origin from outside of the Earth's atmosphere, from space, or from another planet.
13. An area in space that nothing, not even light, can escape from.
15. Second largest planet with a large ring.
16. Seventh planet in our solar system.
17. The largest planet in the solar system
18. A piece of rock from outer space that makes a bright line across the night sky
21. A very bright star with tail that occasionally flies by the Earth.
23. The whole space and everthing in it, including stars and planets.

1. An electronic device that is sent into space and moves around the earth.
3. This used to be the ninth planet in the solar system.
4. The study of planets, stars, and all things in the universe.
5. This planet was named after the God of the Sea.
7. Small, bright objects that we see in the sky at night.
9. The round object that moves around the earth.
10. The second planet from the Sun.
11. The smallest planet in the solar system.
12. Earth is the only (...) where life has been found.
14. A person travelling and working in a spacecraft.
19. The planet that we live on.
20. Creatures, or life forms that come from outer space.
22. We often call it “the Red Planet”.
24. Very hot star that shines during the day and gives the earth heat and light.