Brave the polar extremes with these expert photography tips that will transform your Arctic and Antarctic adventures into ...

The photographer of a stunning image of a polar ... said there's not a "homogeneous response by polar bears to changes that occur throughout the Arctic." Still, the continuous melting of ice ...

Pluto was identified in 1930, but by 1994, it was still little more than a blurry pixelated smudge on astronomers’ screens.