&276/ Watch to Be Inspired: Something Fundamental Has to Change

Citing TED.com:

• The talk. "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."
• The speaker. "Engineer and daredevil explorer Bill Stone is obsessed with discovery. After years of crawling through the deepest unexplored caves on the planet, he’s building robots to go where he can’t. His company Stone Aerospace built DepthX, an autonomous robot, which descended 1,099 feet down Mexico’s deepest watery sinkhole."

TED Talks 2007, Bill Stone. View the talk!