Mystery Deepens Over Unseen Antarctic "Alps"

The existence of a massive Antarctic mountain range buried under miles of ice has become an even deeper mystery, a new study says.
The little-researched Gamburtsev Mountains seem to challenge geologic patterns seen in other mountain ranges on Earth.
New findings based on river sediments, which suggest the range is more than 500 million years old, are intriguing, experts say.

Find out more on National Geographic News