The blue holes of the Bahamas yield a scientific trove that may even shed light on life beyond Earth. If only they weren’t so dangerous to explore. (From 2010) https://on.natgeo.com/2PbPh3h

The blue holes of the Bahamas yield a scientific trove that may even shed light on life beyond Earth. If only they weren’t so dangerous to explore. (From 2010) https://on.natgeo.com/2PbPh3h 

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