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Group Description

The Public Observatory Project (aka POP) is a daytime observatory located at the National Air and Space Museum on the National Mall in Washington, DC. More info at: For the latest updates, follow us on Twitter at @SIObservatory.

Additional Info

  • This group will count toward the photo's limit (60 for Pro members, 30 for free members)
  • Accepted content types: Photos, Videos, Images, Art, Screenshots
  • Accepted safety levels: Safe
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