From the deep ocean floor to vast underground caverns beneath our feet, these places challenge our understanding of the world.

Discover five breathtaking destinations that mirror the Moon’s surface, from Jordan’s Wadi Rum to California’s Death Valley, ...

A Chilean astronomer has become dedicated to battling light pollution in the Atacama Desert and preserve what is considered the best place on Earth to study space.

Great white sharks, like this one pictured in 2014, were once common residents in the waters around Seal Island in False Bay, South Africa. Photograph by Nature Picture Library, Alamy Stock Photo ...