If you’ve ever dreamed of paddling through some of the most beautiful caves in the world, exploring Apostle Islands sea caves by kayak should be at the top of your adventure list. Nestled in the ...

On Sunday’s episode of The Excerpt podcast: Hidden beneath Earth’s surface are caverns and pathways that hold the secrets of our planet’s very beginnings. Even after decades of exploration, there are ...

Mars skylights like this could be the mouths of caves formed by lava tubes. NASA wants to explore them. Credit: NASA / JPL-Caltech / Univ. of Arizona Ever since scientists have had an orbiter's view ...

Vietnam's Son Doong, the world's largest cave passage, started its life millions of years ago as a crack the width of a piece of hair. Today, adventurers marvel at the surreal caverns in its depths.

Is there life in Martian caves? It’s a good question, but it’s not the right question—yet. An international collaboration of scientists led by NAU researcher Jut Wynne has dozens of questions we need ...

Looking for an adventure this summer? Try going underground. According to the University of Kentucky Geological Survey, Kentucky is home to over 5,000 known caves and Indiana has more than 2,500 known ...

Exploring beneath the surface of other planets may be the key to determining whether life has ever existed outside of Earth. As other missions, including that of NASA's InSight lander, have shown, ...

Mumbai isn’t just about Bollywood and bustling streets—it’s also home to ancient rock-cut wonders and layered history stretching back over two millennia. From the meditative Mahakali caves to the ...

At a little more than a mile, Lava River Cave is Oregon’s longest intact lava tube. It’s also one of the most popular caves to explore in central Oregon. The cave is part of Bend’s Newberry National ...

In the not-too-distant future, the search for signs of life on Mars and the moon could see the next generation of robots exploring a new frontier: subsurface lava tubes. These missions could also help ...

How would you design a system to detect, map and explore caves on the Moon? Our latest hunt for ideas is seeking novel initiatives that address this question. While the surface of the Moon has been ...