Yderligere undersøgelser af partiklerne blev udført ved [[Sheffield University]] af Milton Wainwright, som har studeret [[stratosfære|stratosfæriske]] [[spore]]r.<ref name="gentleman"/><ref name="tmcnet 2006"/> I marts 2006 sagde han at partiklerne i fremtoning lignede ''rust fungus''-sporer<ref name="yorkshire">[http://www.yorkshiretoday.co.uk/ViewArticle2.aspx?SectionID=55&ArticleID=1375334 Is mysterious ‘red rain’ first evidence of life in space?] {{Webarchive|url=https://web.archive.org/web/20070112041546/http://www.yorkshiretoday.co.uk/ViewArticle2.aspx?SectionID=55&ArticleID=1375334 |date=12. januar 2007 }} — [[Yorkshire Today]]</ref>, senere sagde han at han havde bekræftet deres ligheder med sporer og alger, og fandt ingen bevis på at regnen indeholdt støv, sand, fedtkugler eller blod. Han sagde også at, ''“There appears to be an increasing tendency among scientists to come up with wild explanations when asked by the press to comment on unusual, novel phenomena. A good example is provided by comments about the recent Indian red rain phenomenon”''.<ref>{{Cite web |url=http://www.newscientist.com/article/mg19025455.400.html |title=1 April 2006, New Scientist: Red rain fantasies |access-date=18. november 2006 |archive-date=10. september 2006 |archive-url=https://web.archive.org/web/20060910102546/http://www.newscientist.com/article/mg19025455.400.html |url-status=dead }}</ref>
Filosofi Fysik Kemi Vand Naturvidenskab