A helmet jellyfish drifts with tentacles splayed in the Bellingshausen Sea off Antarctica, an area in where the shelf break and slope are cut by several underwater gullies. (Caption and photo ...

An curved arrow pointing right. Scientists with the Australian Antarctic Division are testing Antarctica's waters for acidity, salinity, temperature, and oxygen content using underwater robots.

An iceberg the size of Chicago broke off am Antarctic ice shelf to reveal a thriving ecosystem underneath, according to ...