The left handed molecules that led to the beginning of life on Earth may have been singled out for their eventual role in biology by a type of radiation that astronomers have discovered in a star-forming cloud about 1,500 light years away. A team of astronomers in Australia reported in the issue of Science magazine that they detected strongly polarized radiation from a celestial cloud of hot dust and infant stars in the constellation Orion. Its discoveres believe that similar radiation could account for the uniform twist of key moleucules in living creatures and explainm how life arose.