Polar bears' fur is not white. What makes their coats appear white is a result of science, allowing them to blend into the Arctic landscape.

Here, deep into the Arctic Circle and midway between Norway and the north pole, he is investigating the health of the glaciers, by comparing them to what they looked like in archival photos. ...

Mars was once much wetter than we ever imagined. Recent findings about inverted river channels in the Noachis Terra region reveal a surprising glimpse into the Red Planet’s distant past. Mars, known ...

The 43-year-old father of three died after participating in an advanced endurance challenge meant to mimic the experience of ...

A powerful cold front that produced a tornadic thunderstorm in Perth on Wednesday night is now causing a massive rainband to ...