Iceberg A23a first broke away from the Filchner Ice Shelf, in the southern Weddell Sea on Antarctica, back in 1986 - and has ...
The world's largest iceberg, known as A23a, has been on the move after being stuck for 30 years - and scientists have no idea ...
We know less about the bottom of the Great Lakes than we do about the surface of Mars, according to Jennifer Boehme.