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An immense, ancient impact crater has been discovered hidden under the dense arctic ice covering Greenland....
NASA has found something pretty wild under Greenland — a giant hidden void beneath the ice! Using satellites and radar, scientists discovered a huge cavity th...
11,500 year old man-made structures discovered in Turkey....
Seismic echoes have revealed structures at Earth’s core-mantle boundary, but researchers aren't entirely sure what the widespread structures are made of....