Thursday, December 2, 2010
New Life Form Found on Earth
NASA announced today that it has discovered a microorganism that lives off arsenic. It has been dubbed microbe GFAJ-1 and is the first known life to have a DNA structure different than all other life forms. 6 elements are considered the building blocks of life on earth - arsenic not being one of them. Before this, scientists thought an environment without these elements (especially phosphorus) could not support life.
The discovery lends support to life existing elsewhere in the universe.