The trillion-ton slab of ice that scientists call a "megaburg" broke off from the Antarctic’s Filchner Ice Shelf in 1986.

Completing any marathon is a major accomplishment, but completing the race on one of the world's toughest courses is another beast. Take a look at some of the m ...

The biggest iceberg on Earth is heading toward a remote island, creating a potential threat to penguins and seals inhabiting ...