New Scientist. Full article. Old theories falling from favour. New wilder theories looking promising. Many experiments in train. http://www.newscientist.com/article/mg20126981.600-a-bizarre-universe-may-be-lurking-in-the-shadows.html?full=true&print=true They have so far not realised that it's all an attribute of gravity :-) Russell -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist