Leningrad region, Pulkovo Observatory

20-September-2022 Tuesday
Would you like to visit the Main Astronomical Observatory (Pulkovo) of the USSR Academy of Sciences?


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Would you like to visit the Main Astronomical Observatory (Pulkovo) of the USSR Academy of Sciences?
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Youtube Academy of Sciences Astronomy Video Story Leningrad Leningrad region The science Past Pulkovo Pulkovo Observatory Soviet television the USSR
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