Buried several miles beneath East Antarctica's ice, Lake Vostok is one of the largest freshwater lakes on Earth, rivaling ...

Altogether, the Great Lakes are seeing healthier ice coverage this year. Here's what to know about their current conditions.

February, we have longer daylight. Often, temperatures have started to moderate and we have had a snow cover for about 90 days. It has varied much in depth, but this white substrate has been a good ...