At the bottom of the Earth, extreme life

Using autonomous submarines, researchers are planning very dives deep into the Cayman Trench in the Caribbean to study one of the least explored areas of Earth's inner space, the volcanic vents that lie at the bottom. According to Roland Piquepaille, they believe they will find brand new life forms with unusual chemistries - sometimes called "extromophiles" - and that one of every two species encountered will be entirely new to science.