SPACE EXPLORATION

2. one of the independent groups of stars in the universe
3. a vehicle or aircraft that travels regularly between two places:
5. an occasion when a ship is put into water, or a spacecraft is sent into space, for the first time
8. broken or torn pieces of something larger:
9. a place that has no people living in it
11. everything that exists, especially all physical matter, including all the stars, planets, galaxies, etc. in space
14. a piece of equipment that is designed to represent real conditions, for example in an aircraft or spacecraft:
15. parallel to the ground or to the bottom or top edge of something
16. a device sent up into space to travel around the earth, used for collecting information or communicating by radio, television, etc
17. a storm with thunder and lightning and usually heavy rain
18. to turn or cause something to turn in a circle, especially around a fixed point:
19. certain to happen and unable to be avoided or prevented:

1. the activity of travelling to and around a place, especially one where you have never been or few people have been before, in order to find out more about i
4. used to refer to a spacecraft, or a place where military guards work, that has no people present to operate or be in charge of it
6. a person who has been trained for travelling in space
7. relating to gravity or gravitation
10. a piece of rock or other matter from space that produces a bright light as it travels through the atmosphere
12. the mixture of gases around the earth
13. of a star