Antarctica’s Hektoria Glacier may be considered small, but the amount of ice it has lost in record time is a really big deal. The glacier is about 115 square miles (or roughly the size of Philadelphia ...

A halo around the sun is vivid against the blue sky. With the sun’s altitude low, the distinct circular halo nearly touches ...

The clock is ticking. But low clouds have prevented helicopters from moving scientists and gear onto the continent’s ...

An international team of scientists' mission to drill the rapidly melting Thwaites Glacier in Antarctica is being thwarted by unpredictable weather conditions.

Scientists are within minutes of the Thwaites Glacier, but shifting clouds and poor visibility are threatening a narrow ...

Journey to the world's most brutal climates, from Antarctica's frozen plateaus to Siberian villages. Discover how humans ...