Optical photograph of Halley's comet taken on the 25th May 1910 at Helwan, Egypt.

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Size: 4437px × 3322px
Photo credit: © NASA/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: 1910, astronomy, comet, cometary, cosmology, halley, halleys, optical, science