Trái Đất chịu hàng chục va chạm với tiểu hành tinh
Một giả thuyết khoa học phổ biến nhất hiện nay cho rằng, 65 triệu năm trước, một tiểu hành tinh có đường kính khoảng 10km đã va vào trái đất gây ra sự tuyệt chủng cho loài khủng long.
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