Chinese astronauts, known as taikonauts, were sent into a large limestone cave system in a remote area of China.

Deep underground, flowing water leads explorers into a cave shaped by constant motion and time. The waterfall inside Nash Cave reveals narrow passages, slick rock, and areas rarely documented.

Twenty-eight Chinese astronauts have just completed a highly demanding cave-training mission designed to replicate the ...

On this episode, we hear how a team of researchers at the University of Northern Iowa is exploring the deepest caves in the U.S. with NASA funding. This could inform the search for life on other ...

I'm a severe claustrophobe. After getting trapped in a slide in my local McDonald's at five years old, I swore off all tight and dark spaces forever. So it's not entirely surprising that I couldn't ...

Scientists first described the flooded cave in 2016 but determined its extraordinary extent years later. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it ...