Across
- 2. A scientist that studies space
- 3. spinning on axis
- 9. longest wave length
- 10. U-V index
- 11. Hot flaming ball of gas
- 12. sun and moon at right angles with eachother
- 13. used to look into bodies
- 14. Where stars form
Down
- 1. object going around another object
- 4. very long-period waves
- 5. a tide just after a new or full moon
- 6. A lot of solar systems in one clump
- 7. New moon, 1rst quarter, waxing gibbous
- 8. The Hulk