Horizon - Season 40 Episode 10 : The Secret Life Of Caves

Horizon
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Set against the back drop of awe inspiring geological beauty, a strange scientific adventure sets out to discover how a mineral clad cave network - the height of a 30 storey building and the length of six football fields - came to exist deep below the Guadalupe Mountains in North America. But this journey soon unravels a multitude of inexplicable phenomena and obscure geological formations, leading to the discovery of extreme rock-eating microbes - a testimony from primordial Earth and a glimpse of life elsewhere in the Solar System. Geologists believed that all limestone caves were formed by rain and underground water percolating through cracks in the rocks. Absorbing carbon dioxide from the soil, this water becomes weak carbonic acid, nibbling away at limestone, etching out networks of subterranean caves.

Title Horizon - Season 40 Episode 10 : The Secret Life Of Caves
Alternative Titles BBC Horizon
Subtitle Available south-korea.png Japan.png Belgium.png Denmark.png Norway.png portugal.png south-korea.png Luxembourg.png Australia.png hungaria.png italy.png Ireland.png Finland.png switzerland.png Germany.png espain.png france.png belanda.png ETC.
First Air Date 1964-02-04
Last Air Date 2024-07-22
Number of Episodes 1169
Number of Seasons 60
Genres Documentary,
Networks BBC Two,
Casts
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