A skull found in Petralona Cave in Greece is at least 286,000 years old, revealing the existence of an ancient human species still unknown.

Missouri is famous for its thousands of caves, so earning the "most beautiful cave" title in this state is no small feat.

A routine adventure turned into a jaw-dropping discovery. Watch as a massive calcite crystal cluster emerges from bizarre ...

These stunning caves in Kentucky feature waterfalls, crystal walls, and otherworldly passageways that look like they’re from ...

This Kentucky cave trail feels like a cathedral underground, and locals say it’s one of the state’s most awe-inspiring hikes.

Hanging above C.J. Page’s head is the smiling mouth of a drooling monster at least, that’s what it looked like to me. Lathered in dripping, waxy calcite deposits, the mouth is actually a massive, ...

The limestone labyrinth was, however, modified for human exploration in the early 1900s. Mills turned wall lights on and off ...

From the Middle Bronze Age, Egypt played a crucial role in the appearance of calcite-alabaster artifacts in Israel, and the development of the local gypsum-alabaster industry. The absence of ancient ...

From the Middle Bronze Age, Egypt played a crucial role in the appearance of calcite-alabaster artifacts in Israel, and the development of the local gypsum-alabaster industry. The absence of ancient ...

Hidden deep under the snow and even deeper under the earth is an underground river source unknown that trickles out from fissures in a limestone wall and flows through the tunnels and broken rocks of ...

A new study allows for the first time the distinction between calcite-alabaster originating in Israel from that originating in Egypt. Furthermore, it confirms that calcite-alabaster objects, such as ...

From the Middle Bronze Age, Egypt played a crucial role in the appearance of calcite-alabaster artifacts in Israel, and the development of the local gypsum-alabaster industry. The absence of ancient ...