This document contains 20 photos from various photographers and sources such as NASA. The photos have varying licenses from Creative Commons, but most allow for sharing and reuse with attribution. The sources given suggest the photos were obtained from Flickr, Unsplash, and other sites and can be used for both personal and commercial purposes depending on the individual license of each photo.

2. Photo by Ethan Hoover - Creative Commons No known copyright restrictions https://unsplash.com/@ethanchoover?utm_source=haikudeck&utm_medium=referral&utm_campaign=api-
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6. Photo by x-ray delta one - Creative Commons Attribution-NonCommercial-ShareAlike License https://www.flickr.com/photos/40143737@N02 Created with Haiku Deck

7. Photo by NASA - Creative Commons No known copyright restrictions https://unsplash.com/@nasa?utm_source=haikudeck&utm_medium=referral&utm_campaign=api-credit
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8. Photo by NASA - Creative Commons No known copyright restrictions https://unsplash.com/@nasa?utm_source=haikudeck&utm_medium=referral&utm_campaign=api-credit
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9. Photo by NASA - Creative Commons No known copyright restrictions https://unsplash.com/@nasa?utm_source=haikudeck&utm_medium=referral&utm_campaign=api-credit
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10. Photo by Alex Knight - Creative Commons No known copyright restrictions https://unsplash.com/@agk42?utm_source=haikudeck&utm_medium=referral&utm_campaign=api-credit
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11. Photo by See-ming Lee (SML) - Creative Commons Attribution-ShareAlike License https://www.flickr.com/photos/48973657@N00 Created with Haiku Deck

12. Photo by bibendum84 - Creative Commons Attribution-ShareAlike License https://www.flickr.com/photos/14246531@N04 Created with Haiku Deck

14. Photo by arbyreed - Creative Commons Attribution-NonCommercial-ShareAlike License https://www.flickr.com/photos/19779889@N00 Created with Haiku Deck

15. Photo by Joshua Sortino - Creative Commons No known copyright restrictions https://unsplash.com/@sortino?utm_source=haikudeck&utm_medium=referral&utm_campaign=api-credit
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16. Photo by kevin dooley - Creative Commons Attribution License https://www.flickr.com/photos/12836528@N00 Created with Haiku Deck

18. Photo by Darwin Bell - Creative Commons Attribution-NonCommercial License https://www.flickr.com/photos/53611153@N00 Created with Haiku Deck

19. Photo by Jacek Pobłocki - Creative Commons No known copyright restrictions https://unsplash.com/@dabah?utm_source=haikudeck&utm_medium=referral&utm_campaign=api-credit
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22. Photo by Brett Jordan - Creative Commons No known copyright restrictions https://unsplash.com/@brett_jordan?utm_source=haikudeck&utm_medium=referral&utm_campaign=api-credit
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24. Photo by Tim Marshall - Creative Commons No known copyright restrictions https://unsplash.com/@timmarshall?utm_source=haikudeck&utm_medium=referral&utm_campaign=api-credit
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25. Photo by Jesus Loves Austin - Creative Commons No known copyright restrictions Created with Haiku Deck

27. Photo by Giulia Bertelli - Creative Commons No known copyright restrictions https://unsplash.com/@giulia_bertelli?utm_source=haikudeck&utm_medium=referral&utm_campaign=api-
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29. Photo by visuals - Creative Commons No known copyright restrictions https://unsplash.com/@visuals?utm_source=haikudeck&utm_medium=referral&utm_campaign=api-credit
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30. Photo by Rohan Makhecha - Creative Commons No known copyright restrictions Created with Haiku Deck