On this episode, we hear how a team of researchers at the University of Northern Iowa is exploring the deepest caves in the U.S. with NASA funding. This could inform the search for life on other ...
ActionAdventureTwins on MSN
They descended a 280-foot waterfall inside a pitch-black river cave
Deep inside a river cave, a massive waterfall drops nearly 280 feet into complete darkness. Reaching the bottom required a technical rappel through roaring water and slippery rock walls. Few people ...
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