23 April 2009
Scientists mull polarized light detection from alien life-forms
by Kate Melville
Like life on Earth, extraterrestrial life should create an environment with a large amount of molecules that favor one kind of handedness, and now, scientists at the National Institute of Standards and Technology (NIST) believe we may be able to identify life-harboring planets by looking for left- (or right-) handed reflected light from these planets.