Across
- 2. small particles of debris floating
- 7. emission of energy
- 11. everything in existence is inside this.
- 13. a form of transport that travels regularly between two places.
- 16. all planets _____ around the sun.
- 17. a system of millions or billions of stars.
- 18. the act of studying out of space
- 20. a group of stars forming a shape or object
- 21. a gas produced by cow poo
- 24. gases surrounding the earth or another planet
- 26. used to portray a smaller or larger object
Down
- 1. an invisible force pulling everything towards the ground
- 3. a large ball of heat
- 4. a man-made object orbiting the Earth
- 5. surgical instrument used for exploring a wound or part of the body
- 6. the distance light travels in 365 days
- 8. a set of things working together
- 9. a large celestial body orbiting the sun
- 10. an imaginary line about which a body rotates
- 12. a celestial object consisting of a nucleus of ice
- 14. a colourless, odourless, highly flammable gas
- 15. using or involving ellipsis.
- 19. a series of shapes or symbols repeating
- 22. a small rocky body orbiting the sun.
- 23. a cloud of gas and dust in outer space
- 25. a body of matter that has entered the earth's atmosphere