Origin of life research finds RNA can favor both left- and right-handed proteins Phys.orgOrigin of Life Favors One ‘Hand’ of Chemical Building Blocks? UCLA Samueli School of Engineering NewsroomLife’s Molecular Mirror Mystery: RNA Shows No Preference for Left or Right ScienceBlog.comNASA research uncovers new clues about life's molecular handedness Space DailyNASA: Mystery of Life’s Handedness Deepens NASA