What color are the Northern Lights?

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Tags

1. #white
2. #produce
3. #aurora
4. #collide
5. #particles
6. #borealis
7. #associated
8. #interactions
9. #nitrogen
10. #occasionally
11. #yellow
12. #orange
13. #produced
14. #violet
15. #typically
16. #oxygen
17. #colors
18. #often
19. #green