Things that go bump in the night...........and buzzing all around us..........

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   United States Naval Observatory  

   Astronomical Observatory
3. The United States Naval Observatory is one of the oldest scientific agencies in the United States, with a primary mission to produce Positioning, Navigation and Timing for the United States Navy and the United States Department of Defense. Wikipedia
5. Address: 3450 Massachusetts Ave NW, Washington, DC 20392
7. Phone: (202) 762-1467
8. Hours: 

   Open today · 9:00 am – 5:00 pm