An ancient Martian system of canyons and valleys could be home to archaic life forms, a ground-breaking scientific paper has ...

Fresh orbital images and new geological analysis have revealed eight mysterious caves on Mars that appear unusually well suited to protect traces of life. Together, these caverns, portals and ...

The Ellora Caves are among the most astonishing architectural wonders of ancient India, carved from a single rock mass over 1,500 years ago. At its center stands the Kailash Temple, created using the ...

Researchers have found a "unique" collection of "cave pearls"—some of which contain archaeological artifacts—in an ancient tunnel, a study has reported. Cave pearls are a type of "speleothem"—a term ...