Across
- 2. an instrument used to detect radio emissions from the sky
- 3. the range of wavelengths or frequencies over which electromagnetic radiation extends.
- 5. reusable spacecraft
- 7. something that can be chosen
- 8. an artificial body placed in orbit around the earth or moon or another planet
- 10. a telescope in which a mirror is used to collect and focus light.
- 11. study of life in universe
Down
- 1. a telescope which uses a converging lens to collect the light.
- 4. originates not from earth
- 6. spaceship
- 9. anything related to the moon