New: stratospheric

zinou44 (25)in balloon • 2 years ago
The Chinese Spy Balloon: A Stratospheric Surveillance Tool Above the United States
The rise of technology has made it possible for nations to monitor their borders and gather information from great heights. One such tool is the Chinese spy balloon, a stratospheric surveillance…
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parrikar (37)in iceland • 4 years ago
Celestial Leela
Wonders of the sub-Arctic. Polar stratospheric clouds – also called Nacreous clouds – are not uncommon in Iceland during wintertime but the display a couple of weeks ago was special. See this and…
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