"The Descent" - A caving expedition goes horribly wrong, as the explorers become trapped and ultimately pursued by a strange breed of predators. One of the best horror movies I've ever seen. Info and image credit: IMDb.
Huygens: Titan Descent Movie >> Huygens landed on Saturn's moon Titan in 2005. Here is a time-lapse video of its descent through Titan's hydrocarbon-rich atmosphere - first through opaque clouds, and piercing into the clear to reveal a strange and yet familiar landscape.
n 2009, John Jones explored an un-mapped section of the famous Nutty Putty Cave. After becoming stuck in a hole 18 inches wide and 150 feet under ground, rescue crews worked frantically and heroically to free him. This is the story inspired by not only the incident at Nutty Putty, but by the way John lived his entire life.”