Across
- 6. how far light travels in a year
- 8. the tendency to do nothing
- 9. guardians of the ____
- 10. the planet we live on, breathable environment
- 13. a system of stars named after Greece
- 15. dounut shaped ice bodies
- 17. the things that orbit earth that send us data
- 19. ISS
- 22. the size of something
- 23. the galaxy we live in
Down
- 1. the thing that keeps our feet on the ground
- 2. what the earth does around the sun
- 3. the north star
- 4. what we live on
- 5. satellite that's been moving out since the 70's
- 7. space telescope
- 11. triple star system
- 12. A day in space
- 14. the H in H^2O
- 16. a group of stars in the sky
- 18. a thing in space that has so much gravity, light can't escape
- 20. a cloud of dust and particles
- 21. ball of gass and waves