Across
- 2. A constellation named after a Greek princess
- 4. A donut-shaped ring of objects around the sun
- 8. 6 trillion miles is equal to one of these
- 11. What will happen in 4.5 billion years?
- 15. What the dinosaurs go hit by
- 17. What is the sun
- 21. The best telescope in the world
- 23. A manmade satellite in space
- 26. The closest star system to Earth
- 27. An element as well as a planet
Down
- 1. An area with so much gravity even light can't escape it
- 3. Attracts objects toward each other
- 5. What we live on
- 6. Can either be planetary or stellar
- 7. Number 1 on the periodic table
- 9. These orbit the sun
- 10. An object's resistance to motion
- 11. The quantity of matter in an object
- 12. Pluto is now one of these
- 13. planets do this around the sun
- 14. An hour and a half in minutes
- 16. Spaceprobe launched by NASA
- 18. A machine in space that orbits things
- 19. A group of stars
- 20. The planet that got kicked out and turned into a dwarf planet
- 22. North Star
- 24. Milkyway is an example of this
- 25. The galaxy we live in