Tìm thấy núi ở Bắc Cực
ột đoàn thám hiểm người Mỹ và Canada tìm thấy một quả núi dưới đáy Bắc Băng Dương, đồng thời nhận ra rằng biên giới hai nước vươn xa hơn về cực bắc so với mức hiện tại.Bắc Băng Dương. Ảnh: acus.org.AP cho biết, trong hai tháng qua các tàu của hai nước thăm dò các khu vực đóng băng ở phía bắc của Bắc Băng Dương – nơi hầu như chưa tàu nào tới – nhằm tìm hiểu xem thềm lục địa của Bắc Cực vươn xa tới đâu. Thềm lục địa càng vươn xa thì vùng đáy biển thuộc chủ quyền của hai nước càng mở rộng.
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