Today, Mars is known as the red planet, for its rust-colored desert landscape. Once upon a time, Mars was a very different place. It had complex waterways and, possibly, ancient aliens. Researchers ...

Cascade Caverns is a 125-million-year-old cave. It’s 65 feet deep and about a mile long, with a constant temperature of 60-63 degrees Fahrenheit. The cave was formed by water eroding limestone. Tours ...

A "legendary" Texas cave explorer who took part in the first wedding ceremony to be officiated in Texas' Natural Bridge Caverns has died, according to a January 9 social media post by the popular ...