Across
- 2. a telescope that is in orbit around the Earth. Used for taking photographs of the Sun, stars, or planets without atmosphere getting in the way
- 5. a space vehicle that is put into the orbit around another planet or moon. Used for taking photographs or other measurements from close to a planet
- 6. the family of waves that includes light, infrared, microwaves and radio waves
- 8. millions of stars group the force of attraction between any two objects together
- 9. an orbit where a satellite is over the equator and takes exactly 24 hours to circle the Earth, so it always stays over the same part of the Earth
- 10. a star with planets and other objects orbiting it
- 11. a satellite that has not been made by humans. The Moon is a natural satellite of the Earth
- 12. the force of attraction between any two objects
- 13. the part of the electromagnetic spectrum that we can detect with our eyes
- 14. the path that a planet takes around a star, or the path that a moon or satellite takes around a planet
- 15. a satellite used to transmit tv programmes telephone calls
- 17. a space vehicle that lands on another planet or moon. Used for taking soil samples on another planet or moon
- 18. an orbit where a satellite passes over the North and South Poles. It will pass over all parts of the Earth during several orbits
- 19. another name for heat energy that travels by radiation. It can travel through transparent things and a vacuum (empty space)
Down
- 1. an instrument with lenses or mirrors that makes things look bigger. Used for taking photographs of Sun, stars or planets
- 3. a huge ball of gas that gives out heat and light energy
- 4. a satellite made by humans
- 6. a satellite used to take pictures of Earth- for instance to help forecast weather
- 7. a large object orbiting a star. For example the Earth is a planet
- 16. all the galaxies and the space between them