Across
- 3. active instelluar space probe
- 6. a multinational, permanently crewed orbital laboratory in space
- 7. the amount of matter in a object
- 8. the most abundent element in the universeu
- 11. the planet we live on
- 13. a giant cloud of gas and dust in space
- 14. the current north star
- 16. the natural property of matter that causes it to resist any change in its motion
- 17. where the gravity is so strong that nothing can escape
- 18. without this we would be floating right now
- 21. what we use to measure distace in space
Down
- 1. 1 hour and 30 miniutes
- 2. a group of stars that form a pattern in the sky
- 4. doughnut-shaped region of icy debris and dwarf planets that orbits the Sun beyond Neptune
- 5. the closest large spiral galaxy to the milky way
- 8. a large space observitory launched by nasa
- 9. orbits around earth and is man made
- 10. the galaxy we see
- 12. closest star system to our solar system
- 15. what planets do around the sun
- 18. the milky way is a...
- 19. we live on one and they orbit the sun
- 20. a lit up object there in the night sky and their is trillions