Dark matter, a type of matter that does not emit, absorb, or reflect light, is predicted to account for most of the ...

Deep underground, total darkness isn’t just unsettling - it’s dangerous. In this video, we share what happened when our only light source failed in the middle of a cave system. With no visibility, ...

Boarding an open-air bus, you’ll embark on a tour through 1,500 acres of rolling Pennsylvania hills and forests, where North ...

Laurel Caverns near Farmington isn’t just another hole in the ground—it’s Pennsylvania’s largest cave system, a subterranean playground where Mother Nature decided to show off her artistic side.

For centuries, humans have lived underground. Today, that ancient practice is under dire threat—even as cave life makes more ...

Exploring underground river caves is a unique adventure for anyone wanting to experience nature's hidden treasures. These caves, shaped over millennia, give you a chance to witness stunning ...

Crystal Cave reopens for tours after major restoration: ‘Marvel at underground splendor’ The cave features stunning stalactites, stalagmites, and intricate formations, offering a unique glimpse into ...

Crystal Cave reopens for tours after major restoration: ‘Marvel at underground splendor’ The cave features stunning stalactites, stalagmites, and intricate formations, offering a unique ...

After a four-year closure, Crystal Cave is inviting visitors to "marvel at its underground splendor," Sequoia Parks Conservancy officials stated in a press release. Tickets for guided tours of the ...

Bethany Mantle spent her childhood living in a cave underground to escape the the scorching heat. Then she uncovered a whole new world ...