Photograph credits

• NOIRLab/NSF/AURA/T. Slovinský, CC BY 4.0
• ShakataGaNai, CC BY-SA 3.0
• Ivan Radic, CC BY 2.0
• Siarhei Horbach horbach, CC0
• Ilya Pavlov ilyapavlov, CC0
• Markus Spiske markusspiske, CC0
• Free-Photos from Pixabay, CC0
• Jérôme Nicolle, CC BY-SA 3.0
• Jacek Rużyczka, CC BY-SA 4.0
• Vintechcomputerservices, CC BY-SA 4.0
• Indrajit Das, CC BY-SA 3.0
• The National Archives (UK), CC BY 3.0