Recent analysis suggests that Mars may be home to water-carved caves, potentially formed by ancient water flows. These ...

Scientists discovered caves on Mars likely formed by water, offering new hope in the search for signs of past life.

Maine is home to some of the most unique hikes in the United States, both within its massive Acadia National Park and beyond.

Researchers have found what may be the world’s largest spider web in an underwater cave on the Greece-Albania border. The massive web covers 1,076.4 square feet along Sulfur Cave’s wall and houses ...

The world's largest spider web has been found in an underwater cave on the Greece-Albania border, according to a recent ...

Jewel Cave, located 13 miles west of Custer, has more than 208 miles of “mapped and surveyed passage ways,” with hundreds of suspected passages yet to be explored, according to the National Park ...

If there is, or ever has been, life on Mars, the chances are it would exist in caves protected from the severe dust storms, ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. SAN DIEGO — Southern California is home to ...

In the video clip, the scary figure inside the hidden cave seemed to have dark eyes and a creepy smile.

Researchers may have discovered the world's biggest spider web, a massive subterranean structure spanning over 100 square ...

The Marble Arch Caves in County Fermanagh are one of several locations featured in a new campaign showcasing natural ...

A new study identifies eight Martian caves that scientists say should be prioritized in future life-search missions.