There's a humongous boulder on a cliff in Tonga. Now we know how it got there.
Space.com   2 days ago
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There's a humongous boulder on a cliff in Tonga. Now we know how it got there.  Live ScienceMassive boulder weighing 1,200 tons washed inland by an ancient tsunami  Earth.comGiant boulder on clifftop in Tonga was carried by a 50-metre-high...