What happened to the red comet in Game of Thrones?

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Tags

1. #astronomical
2. #appeared
3. #targaryen
4. #phenomenon
5. #comet
6. #called
7. #means
8. #messenger
9. #kings
10. #daenerys
11. #essos
12. #shortly
13. #sword
14. #after
15. #dragons
16. #hatching
17. #skies
18. #westeros
19. #thing
20. #outbreak