Across the Russian polar regions, these eye-catching pictures show how thawing soil leads to territories being washed away.

An extraordinary adventure, blessed by the Queen of England and the Tsarina of Russia.

Tigre de Cristal under fire for 'abusing' rare big cat to promote gambling revolution.

Feeling ill during foreign assignment, she was sent alone on 300 km train journey less than 48 hours before she died of serious blood infection.

Mysterious 'gigantic' hole in remote region spotted by helicopters over gas-rich Yamal peninsula.

The 19th century vessel - formerly the Royal Navy's HMS Pandora - sank as Americans raced to be first to North Pole.

Barack Obama is planning a private show for his wife, and British royal Zara Philips is releasing a video performing the cult South Korean dance.

Four bodies found, search underway for the other six on board a capsized patrol boat in poor weather.

Like an approaching UFO, the bright white luminous ball glides over a field, before heading into woodland.