Gravitational waves spotted by LIGO reveal two black holes, 140 and 100 times the mass of the sun, merged to become a 225 solar mass behemoth.

Mitchell Caverns feels like stepping into a fantasy world with its bizarre formations. The two connected caverns, El Pakiva ...

Thrill-seekers can try the 165-foot rope rappel into the depths of the cavern. It’s California’s tallest public rappel and gives you serious bragging rights! If dangling from a rope isn’t your style, ...