In the ongoing effort to establish a permanent lunar base where humans can live and work on the moon, scientists have ...

Beatriz Flamini of Madrid began living 230 feet below ground in November 2021 as part of a project called "Timecave" A Spanish athlete has emerged from an underground cave after 500 days of isolation.

One of Kentucky's most awe-inspiring attractions is Mammoth Cave National Park, which promises unique above and underground adventures and wows hundreds of thousands of visitors year after year.

the stalactite cave of Adelsberg. A nightmare of Milan Cathedral turned upside down, or a... View Full Article in Timesmachine » Advertisement ...

Its walls are marble — not the granite that dominates the Sierra Nevada range — and an underground stream runs alongside much of the cave trail. The last and largest “room” is known as ...

Its walls are marble — not the granite that dominates the Sierra Nevada range — and an underground stream runs alongside much of the cave trail. The last and largest "room" is known as Marble ...

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