Discover the magic of Sete Cidades, where an ancient volcano became a pair of crystal lakes surrounded by lush green hills.

For centuries, Mount Taftan has been considered dormant volcano, a quiet sentinel in the Makran region of southeastern Iran.

Seeking affordable sunshine this winter? Discover 10 best international destinations for retirees — from Greece to Morocco — ...

Far from boring, this period saw the reorganization of deep Earth in manners that prepared the way for life to grow complex.

Nearly 4000 years ago, and 1500 years before Pompeii was buried by volcanic ash, the Bronze Age city of Akrotiri was ...

A VOLCANO thought to be dead has roared into life and risen from the ground – sparking fears of its first eruption for ...

Scientists have long wondered why Earth's overall makeup doesn't fully match the mix of materials found in ancient meteorites ...

Two thousand years ago, Alaska’s Mount Okmok volcano spewed ash high into the atmosphere for months. Scientists believe it had major repercussions half a world away.

Massive volcanic eruptions billions of years ago may have made it snow on Mars, leaving thick buried ice near the planet’s equator.

Everyone dreams of Santorini’s white domes and caldera sunsets, but Greece is made of more than a single picture-perfect ...

For the Shui people of nearby Gulu Zhai village, these stone “eggs” are treasured symbols. Many families keep them at home as ...

America’s geological wonders don’t need erupting volcanoes to create breathtaking spectacles that look straight out of a ...