An ancient Martian system of canyons and valleys could be home to archaic life forms, a ground-breaking scientific paper has found. Scientists investigating the Red Planet’s mind-boggling cave system ...

With its long wavelength, near-infrared light is hardy enough to survive the limestone surroundings in the cavern: “The ...

Step into an Arkansas cave where glowing formations, cool air, and echoing chambers make it feel like you’ve entered another ...

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 ...