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The filter change mechanism on the LSST camera at the Rubin Observatory (largest digital camera in the world)

The flying observatory SOFIA / Die fliegende Sternwarte SOFIA

Aurora Borealis Observatory - The Norwegian Orca Whisperer Facebook

The-underwater-observatory-in-Lake-Zug-Switzerland

Reindeer posing under the aurora last night

King of the mountain at the Troll Wall