KoldCast TV - Bill Stone explores the world’s deepest caves - TED

Bill Stone explores the world’s deepest caves - TED Posted: 07 Jan 2011 08:01 AM PST Bill Stone, a maverick cave explorer who has plumbed Earth's deepest abysses, discusses his efforts to mine lunar ice for space fuel and to build an autonomous robot for studying Jupiter's moon Europa. / Tags: TED, TEDTalks, talks, maverick, cave, explore, explorer, plumbed, deepest, deep, abyss, lunar, ice, robot, science, technology, Jupiter, moon, Europa