
Australian scientists have discovered a "mind boggling" 2.2km-deep canyon underneath an Antarctic glacier.
It is hoped water samples from the depths will help paint a picture of how warming oceans contribute to glacial melt from below.

Australian scientists have discovered a "mind boggling" 2.2km-deep canyon underneath an Antarctic glacier.
It is hoped water samples from the depths will help paint a picture of how warming oceans contribute to glacial melt from below.