Across
- 3. the streak of light caused when entering the atmosphere
- 5. a drawing of an object or area
- 7. thing that orbits stars
- 10. energy or particles let off by stars
- 11. to travel around an object you _____ it
- 12. particles of matter floating through space
- 13. a rock floating through space
- 14. a group of interacting elements
- 16. a force pulling matter together
- 19. a object made of ice that when near the sun gets a "tail"
- 20. an imaginary straight line which an object rotates on
- 22. a spacecraft monitoring a planet
- 23. the element in the sun
- 24. stinky gas
- 25. when one body make another body in space dark
Down
- 1. path of a celestial body
- 2. a group of stars
- 4. studying space
- 6. a cloud of gas that makes a star
- 7. a regular predictable and often repeating group of elements
- 8. all of space
- 9. the distance light travels in a year
- 15. the thing that comes out of nebulas
- 16. a massive system in the universe
- 17. a sort of bubble around a planet
- 18. a mission in space without humans
- 21. a kind of spacecraft