Vast ocean found hidden deep in Earth's mantle

[Karma]

Found! Hidden Ocean Locked Up Deep in Earths Mantle


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This is fascinating to me! Yet another reminder how much (or how little) we know about our own planet.

 

[Lord Ravena]

Very interesting.

 

[Tribute]

Fascinating! And a little bit scary... It kind of makes me feel like the line "You know nothing, Jon Snow!" is applicable to all of us