For decades, scientists have been baffled by two enormous, enigmatic structures buried deep inside Earth with features so vast and unusual that they defy conventional models of planetary evolution.
Far below your feet, nearly 1,800 miles beneath oceans and continents, Earth carries two massive scars from its violent youth. They are so large they rival continents in size, yet no human will ever ...
The moon once drifted thousands of miles farther away, and Earth's days got 2.2 hours longer, a new study finds. When you purchase through links on our site, we may earn an affiliate commission.
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