SCIENCE FICTION

2. The fundamental and distinctive characteristics or qualities of someone or something, especially when regarded as unchangeable.
7. A person who is trained to travel in a spacecraft.
9. An optical instrument used for viewing very small objects.
11. Of or from outside the earth or its atmosphere.
13. To transport or be transported across space and distance instantly.
14. A machine capable of carrying out complex actions automatically.
15. An organism or cell, or group of organisms or cells, produced asexually from one ancestor to which they are genetically identical.
16. Having artificial body parts, especially electromechanical ones.
17. An unidentified flying object.

1. A scientific procedure undertaken to make a discovery, test a hypothesis, or demonstrate a known fact.
3. A robot with a human appearance.
4. The action of inventing something, typically a process or device.
5. A system of millions or billions of stars, together with gas and dust, held together by gravitational attraction.
6. A device that generates an intense beam of coherent monochromatic light.
8. The theory and development of computer systems able to perform tasks that normally require human intelligence.
9. The changing of the structure of a gene, resulting in a variant form that may be transmitted to subsequent generations.
10. The force that attracts a body towards the centre of the earth, or towards any other physical body having mass.
12. The concept of moving between different points in time in a manner analogous to moving between different points in space.