Space - Vocabulary

3. The star at the centre of our Solar System.
7. The eight planets and their moons in orbit round the sun, together with asteroids, meteoroids, and comets.
10. The natural satellite of the Earth.
13. An optical instrument used to observe space.
14. A piece of rock or metal that has fallen to the earth's surface from outer space.
15. A hollowed-out area produced by the impact of a meteorite.

1. All existing matter and space considered as a whole; the cosmos.
2. A spherical celestial body made of hot gas that produces radiant energy.
4. A system of millions or billions of stars, together with gas and dust.
5. A small rocky body orbiting the Sun.
6. A person who is trained to travel in a spacecraft.
8. A vehicle used for travelling in space.
9. A person who observes celestial phenomena.
11. A celestial object consisting of a nucleus of ice and dust.
12. A room or building housing an astronomical telescope or other scientific equipment for the study of natural phenomena.