Werner Becker of the Max-Planck-Institut fÃ 1\/4 r extraterrestrische Physik recently said , `` The theory of how pulsars emit their radiation is still in its infancy , even after nearly forty years of work . . Werner Becker of the Max Planck Institute for Extraterrestrial Physics said in 2006 , `` The theory of how pulsars emit their radiation is still in its infancy , even after nearly forty years of work . ''