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fahad
There is now a deep "blue hole" near the South Pole, and the US satellite is urgently concerned! Expert Warning: Contrary to common sense
South Pole
Blue Hole
satellite
United States
Cloud Cave
fahad
04-15
![There is now a deep "blue hole" near the South Pole, and the US satellite is urgently concerned! Expert Warning: Contrary to common sense[fig]](data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACwAAAAAAQABAAACAkQBADs=)