NASA astronaut Don Pettit has captured another remarkable shot, this one showing the Betsiboka River estuary in Madagascar.

It also offers a venue to do so in a region with a reputation for being among the most geologically flamboyant on our planet. Guizhou is synonymous with the karst spires that stab the skies like ...

Scientists think a small rock discovered near Earth last August was hurled into space by an ancient impact on the lunar surface.

Over 25 years ago, researchers discovered that some of these deep Earth reverberations pointed to the existence of two underground “super-continents” hundreds of miles beneath Africa and the Pacific ...

Continent-size islands deep inside Earth's mantle could be more than a billion years old, a new study finds.

There is a reasonable chance you have not heard of Jonathan Nash. However, the games journalist and comedy writer has been such an inspiration for a generation of games critics, and the generation ...

"The Zanclean megaflood was an awe-inspiring natural phenomenon dwarfing any other known floods in Earth's history," an ...

World-acclaimed gems explorer and human rights activist Yianni Melas has been budded the modern-day Indiana Jones of gems.

Pine Flat bass, king salmon and trout providing lots of action, Brandon Grimsley reported. New Melones bass bite is good, ...

A stunning composite image, made up of three years' worth of satellite photos, shows the ancient lava of Libya's Haruj ...

Located in the heart of Humboldt Redwoods State Park, the Drury-Chaney Trail is a 2.4-mile loop that winds through some of ...

Mars is home to perhaps the greatest mystery of the solar system: the so-called Martian dichotomy, which has baffled ...