Before Morrison's groundbreaking achievement, the Hornbein Couloir was considered one of the last great lines to elude ski ...

Many unexpected human artifacts have been preserved, for centuries, in vulture nests. This sandal woven from grasses and twigs, called an agobía, is somewhere between 727 and 771 years old, ...

Newly dated fossils from New Mexico challenge the idea that dinosaurs were in decline—and suggest instead they had formed ...