Photo Credits & Permissions
Enke’s comet:
Licence: Public Domain Mark
Credit: Astronomy: stars in the night sky, with Encke's comet. Coloured engraving by J. Basire, 1851 after C. Piazzi Smyth.
Black & White Comet (multiple)
Licence: Public Domain Mark
Credit: Astronomy: comets in a night sky. Engraving.
Free to use under the Unsplash License
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