Professor's alien life 'seed' theory claimed

Over the past three decades research has shown that large swathes of the Milky Way are strewn with gigantic dust clouds full of organic molecules, which some people have argued shows life emerging independently from new in these clouds.  In his paper, he says recent interpretation of spectra readings from the organic molecules found in interstellar clouds has indicated that they are in fact the remains of bacteria which has been broken down, rather than being built up.  weblink